A/N: We all knew this was coming eventually :P Robin was actually quite fun to write here, probably will do another chapter for her in the future. :)
As usual, enjoy you perverts :D
"So, can we leave now?" Luffy asked.
Robin smiled at him, feeling her heart beat slightly faster upon seeing his smiling face.
"Of course, Luffy."
Luffy's grin widened upon hearing her words, moving forward to pick her up in a bridal carry.
Robin panicked slightly, "Umm… Luffy… It's fine, I can walk…"
The Rear Admiral simply shook his head, "Your legs got cut because of me, let me carry you!"
The archaeologist knew that there was no convincing him otherwise so she opted to wrap her arms around his neck instead.
Her mind replayed back to the time he had carried her in the same way back at Jaya, the content of her current thoughts vastly different compared to back then.
Franky whistled from where he lay, "I see what's going on now… She's your woman ain't she, Marine bro?"
Robin smiled at him, "Please do not be mistaken, our commander is already engaged to another woman. I would hate to be the source of a misunderstanding to their relationship."
"Shishishi! It's ok Robin! Hancock's not that picky," Luffy laughed before leaping into the sky.
Robin barely felt the wind rush past her, her grip tightening around him as they were both airborne.
"You ok, Robin?" Luffy looked down with concern, sensing her unease.
"Yes… I'm still not used to flying I guess."
"Hey! That's what Nami said too! But now she always asks me to carry her while flying around on our nights out!"
Robin raised an eyebrow at his proclamation. It was not because that she did not know about Luffy's supposed 'affair' with his subordinate, but rather he had almost declared it so openly.
It took Luffy another second to realise what he had just said.
"Oh! Er… I mean, like you know… Going shopping! Yeah! That's right!"
Robin felt the corners of her lips rise slightly, "In the middle of the night? When all the shops are closed?"
"Ah… Er… Umm... Please don't tell Nami…" Luffy pleaded, realising he was breaking the promise of not revealing their relationship to the rest of the crew.
"Fufufu, your 'secret' is safe with me Luffy. As I said earlier, I wouldn't want to be the reason for you and your fiancee to have a fallout."
Luffy breathed a sigh of relief, more from knowing Nami would not know about his blunder than Hancock finding out about his 'affair'. Luffy lowered his speed just as they neared the Tower of Justice, landing among the debris with a boom of thunder.
"Hey guys, I got her back!"
On the streets of Water Seven, Robin was led by the hand as Nami pulled her through the crowd to reach a certain clothing shop.
"Ah found it! Come on Robin!" Nami yelled in triumph, pulling the archaeologist into the shop after her.
Robin looked around the shop, her years of experience instantly identifying it as a lingerie store.
The older woman nodded to the female store clerk that welcomed them, her younger companion already diving through the clothing racks to look for something that she wanted.
Nami pulled out a set of purple lace underwear, both the bra and panties were so sheer that it was almost see through.
The navigator showed it to her companion proudly, "What do you think?"
Robin frowned slightly, the underwear was sexy for sure, but it also gave off a rather mature feeling that did not fit with the more youthful girl's looks.
"I don't think that fits you, Nami. Mayhap another one?" Robin suggested.
Nami raised an eyebrow at her before pushing the underwear towards the older woman, prompting her to grab it by surprise.
"I was picking out for you silly, I already have my own sets."
Robin narrowed her eyes slightly, "Why would we be picking lingerie for me?"
Nami wagged a finger at her, "There, there Robin. You may be book smart but I think I have way more experience than you in this department now. You don't think your normal underwear is going to be enough to charm Luffy now are you?"
The archaeologist took a hesitant step back, "Cha… Charm Luffy? Why would I do that?"
Nami frowned at her, before gasping in surprise and covering her mouth with a hand.
"Oh my gosh! I had just assumed! I mean he bridal carried you and everything! And how you were looking at him on the way back too!"
Robin felt a slight tinge of heat colour her cheeks, it was true she did look at Luffy slightly differently as compared to before, but she did not think it was that obvious. She herself was not even sure if she truly felt that way about Luffy yet, given that she had not fallen in love before.
What the archaeologist did not know was that Nami had spent enough time with Luffy's multiple lovers to accurately pick out any signs of favor towards her superior. Unfortunately, that also meant that the navigator now easily mistook any of these signs as a form of romantic love rather than anything else.
Even if Robin's feelings had only been ones of pure admiration of Luffy as her saviour, Nami had taken it as a sign that Robin had developed romantic feelings for her Rear Admiral even if the woman was not aware of it herself.
Nami noticed the look in Robin's eyes, realising the older woman did not deny her words.
"Oh? So I was actually right then?" Nami teased.
Robin frowned, her cheeks now flushed a bit more obviously, "I… I do not know… My whole life I have been on the run from everyone around me while keeping them at a distance. No man had been close enough for me to actually take a personal interest to. These feelings that I have of him may just purely be gratitude to him."
Nami leered at her, "Mmmhm… I see, I see. I totally understand that. You and I aren't that different after all..."
Robin raised an eyebrow at her.
"You see, he rescued me from a pirate terrorising my village back then. I had thought the feelings I had harbored was only gratefulness to him as well, but he swept me off my feet one night and I fell so hard for him. I believe you're in the exact same situation as I was," Nami explained with a cheeky smile.
Robin frowned at her, not ready to admit that the feelings she felt belonged to the romantic category yet.
"Nami… Isn't this… Unacceptable?"
The younger woman tilted her head at her, not comprehending her question.
Robin sighed, "You know that Luffy is an engaged man... To the Pirate Empress no less. I doubt she would be cordial to you if she were to find out of your affair with her fiance. In fact, I do worry about Luffy's future relationship with her given how ready he seems to sleep with you."
Nami actually burst out in unrestrained laughter at the archaeologist's words, confusing Robin even further.
Wiping a tear away from her eye, Nami took a moment to calm down her breathing, "Oh dear… Hancock would actually be more upset if she found out I stopped sleeping with him because of her. I had suspected that you didn't know, but I thought you figured out already after his fiancee came to visit."
Robin tilted her head slightly, signifying that she still did not understand.
"Luffy's in a polyamorous relationship," Nami explained simply with a giggle.
The archaeologist's eyes widened considerably, not having suspected of that fact at all. She had expected a person such as Hancock would want to monopolize Luffy for herself and be unwilling to share. To actually find out that the most beautiful woman in the world was willing to share her lover was shocking to say the least.
"So if that is what's stopping you from getting him, don't worry about it!" Nami grinned.
"I… That's not what I was worried about…" Robin lied.
The Marine navigator pointed at the lingerie set that Robin was holding, "Then why are you clutching that even tighter?"
Robin looked down at her hands, finding them embracing the lingerie set close to her bosoms.
Her face flushed red before slowly placing it on a nearby clothes rack.
"Oh? Don't like it? Maybe something else for you then?" Nami teased, rifling through the clothing rack for another set.
Robin furrowed her brows at the navigator's nonchalant attitude, "Does it not bother you then? Unable to monopolise Luffy's affections?"
Nami let out a chuckle, recalling her first group session with Hina, Vivi and Luffy.
"Not really, honestly. We really are alike you know? I asked Hancock almost the same question when I found out she was willing to share."
The navigator grinned at another set of black underwear, turning to pass it to the older woman without hesitation.
"I got an idea, come to the baths tonight, then you decide what you want to do from there!"
Robin took the set of lingerie with both hands hesitantly, "What… What are you planning?"
Nami winked at her with a cheeky grin, "Call it an open invitation, ok?"
The archaeologist frowned but made no move to put the underwear back on the rack.
"Oh and don't expect him to be the one to make the first move, you already know how dense he can be if you don't give him a clear sign." Nami glanced pointedly at the lingerie in Robin's hands.
Robin narrowed her eyes at the navigator before turning around to find a changing room to try on the set of lingerie that was picked out for her.
The Marine navigator watched her female crewmate leave with a satisfied smile, her mind already making up countless of possibilities for the fun night ahead.
For the heroes of Water Seven, the citizens deemed fit for them to be boarded at the best hotel they could offer them, treating them like VIPs.
The Straw Hats were paired off and shared a suite room with each other, with Luffy having his own suite to himself.
It went without saying that Sanji and Zoro got stuck in the same room for their stay and neither of them passed a night without trying to strangle the other to death.
What made the hotel stand out from the rest was the exceptionally large bathrooms attached to their suites. It boasted a bathtub large enough to fit five persons and enough space in the wash area for four people to bathe themselves comfortably.
With this big of a bathing space, there was no need to fear for space if the occupants of the suite decided to take a bath at the same time.
At that point in time within the girls' bathroom, two such people had decided to take a bath together, though one of them was not a proper occupant of said suite.
Luffy sighed as he relaxed into the bathtub, having decided that the strength drain was worth the feeling of immersing himself fully within the heavenly bath water.
Nami sat with her back to him in between his legs, the navigator leaning herself on his chest with a satisfied sigh.
Even with the size of the bathtub, the two lovers still opted to stay close to each other.
"Ahhh… Taking a nice bath after that tedious event makes it all worth it," Nami sighed, scooting herself closer to Luffy.
Luffy nodded in agreement, his hands reaching forward to wrap around his lover's waist.
Nami had other ideas though, her hands reaching down to bring her Rear Admiral's hands up to her bosoms, squeezing them slightly.
Luffy got the message and began massaging her globes slowly, his fingers pressing into her breasts and teasing her nipples lightly.
Nami moaned, tilting her head back to steal a kiss from her superior.
The kiss escalated into a deep one, Luffy parting his lips to let his lover push her tongue in to explore his mouth.
They broke the kiss after a full minute, Nami's eyes glowing with wanton lust.
"And making love with you makes it doubly more so," the female Marine whispered sultrily.
She turned around to face him, kneeling down on the bathtub to mash her lips against Luffy's, her arms already wrapping around his neck.
Luffy moaned into the kiss, feeling his navigator's nipples hardening against his chest.
He wrapped his arms tighter around her, basking in the comfortable heat passed between their lips. Their tongues sought out the other's, wrapping around their partner's in its own passionate embrace.
Nami ran her hand through his hair, fingers grasping a fistful of her commander's hair while their lips remained connected.
Luffy felt his own member hardening from their intimate kiss, his rod pushing against his lover's belly.
Nami broke the kiss, breathing hard, "Gods Luffy… I love you… Just kissing you makes me so hot…"
She lifted her hips slightly, rubbing her aching sex along her lover's cock.
Luffy let out a hiss of pleasure, wanting nothing more than to just shove himself deep within his subordinate right there and then.
Nami took pleasure in knowing he was holding himself back, allowing her control of their current love making for the moment.
She kissed him again adoringly, her hands wrapping around his face as she continued to grind herself on her lover.
The door to the bathroom opened slightly without a sound, allowing a towel-wrapped Robin to just barely peek into the room.
It wasn't the first time that she had seen the superior and subordinate making love to each other, having already caught the two of them out one night doing the deed at the back of the ship when everyone else was asleep. Then another time when Nami snuck Luffy into their room when she was on watch duty. Once more when Robin thought Nami was taking a tad bit too long with her bath and found an extra Rear Admiral slamming his waist against her from behind inside. And then another time when… Robin was starting to suspect Nami wanted her to actually catch them in the act.
At first she would just watch them from afar as a possible form of blackmail against Luffy should he turn on her. But even after it became apparent that Luffy had no intentions of turning her in, Robin still found herself spying on them for the heartwarming scene of two lovers expressing their love for each other.
In the past, Robin had felt no arousal from watching them, merely using their love making as a form of entertainment and nothing more.
This time was slightly different with the fact that Nami had invited her to join in as well. That was why she opted to peek at them using her real eye instead of a created one, as though the archaeologist wanted the navigator to catch her peeking on them.
As though her body understood the implications of such an action, just watching Nami straddle the youth with her lips clamped on Luffy's made her breathe harder.
Nami saw the door move slightly out of the corner of her eye, grinning slightly at the thought of Robin spying on them at the other side of the door.
Her hand caressed the side of her lover's face before standing up from the bath, Luffy watching the water cascade down the smooth curves of her body with special interest.
The navigator bent herself over the edge of the bathtub slowly, like a cat that was stretching itself after a long nap. Her ample bottom curved tantalizingly in the air, her dripping wet sex revealed for her lover to witness in its naked glory.
Nami batted her eyelashes at him while wriggling her hips.
Luffy got her request as clear as day.
The Rear Admiral stood up brom the water, his hands reaching out to grip his lover's hips tightly.
Nami sucked in a breath as she felt the tip of Luffy's cock kiss her entrance, already mentally preparing herself for the pleasure that was to come.
Luffy slid himself in slowly, revelling in how Nami's walls slowly parted around his rod as he pushed himself deeper into her.
The Marine navigator let out a moan of pure pleasure as she clamped down her walls around her commander's cock, feeling his full length inside of her. Her tongue rolled out of her mouth while her eyes rolled towards the back of her head, her body spasming slightly as a small spark of pleasure shocked her.
Robin noted the look of ecstasy on Nami's face, her mind imagining how good the girl must feel right about now.
Luffy groaned in pleasure, his hands gripped tighter on Nami's ass while he basked in the feeling of his lover's sex embracing his cock inside of her.
He leaned forward, planting her kiss on Nami's shoulder, "I'll move now."
Nami barely gurgled out an affirmative, still high on the pleasure.
Luffy withdrew himself slowly from Nami's sex, the girl mewling in pleasure in response.
Ever so slowly, he pushed himself back into her again, marvelling at how easily his lover accepted him.
Robin watched on with mild fascination, a hand reaching down unconsciously between her legs.
The Rear Admiral began picking up speed, knowing his orange haired lover liked it rough from behind. The obscene sound of flesh hitting flesh echoed around the room as Luffy began pistoning himself into his navigator, the girl screaming out her pleasures with wild abandon.
"Luffy! Harder! HARDER! SO GOOD! SOOOOO GOOOD!" Nami screamed, already forgetting about the audience just behind the door.
Luffy grunted, pulling himself out of his lover and flipping her around on her back before thrusting back into her all within a split second.
The Rear Admiral rammed himself even faster, groaning as he felt his subordinate's sex clamp down hard on his shaft.
Nami immediately wrapped her arms and legs around him, pulling him close as she felt his body tense up.
"Inside me! Give it all to me!" Nami screamed.
Luffy obliged, releasing his load inside of her as their lips clamped around each other's for a deep kiss.
The Marine navigator screamed into her superior's mouth, her own orgasm hitting her like a truck the moment she felt Luffy's seed flood her insides.
It took a full minute before both of them winded down from their high, Nami gasping for breath underneath her lover.
"Ohhh… That was… Perfect… Gods, I love you so much…" Nami moaned, caressing her lover's cheek adoringly.
Luffy grinned at her, "So… Any reason why Robin was waiting outside?"
Nami gasped, "Oh dear! I almost forgot!"
The navigator turned her head towards the door, fully expecting Robin to enter the bath by now.
"She already left," Luffy informed.
Nami's face fell, disappointment clear on her face.
Shrugging to herself that she could not always get what she wanted, the navigator kissed Luffy on the cheek.
"Oh well, let's move to the bed shall we? I want to feel sexy tonight."
The Rear Admiral caught his subordinate wiggling her eyebrows suggestively, already catching on to what she had in mind.
Nami gave him an appreciative moan as Luffy drew himself out of her snatch, his cock still standing at full mast.
The navigator took the opportunity to suck the meat pole into her mouth, rolling her tongue over it to taste clean it before releasing it with a pop.
She gave his rod an appreciative pat before rolling off the bathtub, making her way towards one of the shower faucets to clean herself with her lover in tow.
Refreshed once more, Nami led Luffy into the bedroom while holding his hand, fully expecting the room to be empty. She had figured Robin would let them have their fun and return once they were done like usual.
However, what greeted the two lovers was the sight of an archaeologist sitting on the bed clad in a set of black lace underwear complete with stockings, garter and a pair of black silk gloves that reached to her elbows.
A dark purple sleeveless babydoll was thrown over her shoulders, the dress so sheer that it hid nothing underneath.
Nami gaped at the sight, sure she had picked the outfit for her but she did not expect it to fit her that well.
"That looks really nice on you Robin!" Luffy blurted out truthfully, drawing Nami back from her thoughts.
The navigator smirked at her fellow female, "I was afraid that you had decided not to join us too."
Robin just shrugged her shoulders, her eyes betraying no emotions even with the two lovers standing stark naked in front of her.
"I'll go prepare myself. In the meantime Luffy…" Nami gave him another kiss while her hand reached down to give his rock hard cock a stroke. "Why don't you get Robin… A bit better acquainted with your cock?"
The navigator threw him a sultry smile before moving towards the dresser, looking for her own set of lingerie to put on.
Luffy moved to sit beside Robin, the archaeologist tensing slightly as she felt his weight press down on the bed.
"I am nearly twice your age," Robin stated calmly.
Luffy shrugged, "So is my fiancee."
"You may not like me back."
"I like you enough to risk my life for you."
"I don't even know how to make you happy…"
"I'll be happy if you're happy."
"I'm not even sure if these feelings are what I think they are."
"Shishishi! Just do what you feel like doing then!"
Robin turned to look at him, catching the unwavering confidence in his gaze.
"Will you love me… Like you do the rest?"
Luffy nodded with his usual smile, "You are just as precious to me."
Robin felt herself lean forward, a gloved hand pinching the Rear Admiral's chin.
She angled his head upwards to match her, her lips parting slightly and her eyes closed shut as she moved closer.
Luffy moved the last centimeter, catching her lips with his own.
The archaeologist felt a comfortable warmth envelope her, feeling the youth's hand cupping both her cheeks.
She let the hand that had been on his chin slide to his cheek, caressing the curve of his face softly.
Luffy probed her lips with his tongue and Robin welcomed him to explore her mouth, her tongue darting out to wrap around his.
She sucked in a breath, a sense of euphoria overcoming her senses as the Rear Admiral deepened the kiss, pulling her closer to his embrace.
Robin let herself be drawn further into the kiss, her mind going completely white with the pleasure she felt.
The need for air finally broke the two apart, both of them breathing hard and staring into each other's eyes.
A few seconds passed before Robin pulled him in again, the second kiss they shared much more passionate than the last.
Nami watched from the side, dressed almost similarly to Robin except hers was white in colour with a bright yellow babydoll on top.
A gloved hand was already in between her thighs, the navigator leaning on the other side of the bed as she watched Luffy push Robin down on the bed to continue their kiss.
Robin wrapped her arms around Luffy as she fell on back, making sure their lips never left each other.
One of the Rear Admiral's hands slid downwards to cup a boob, squeezing it softly to elicit a moan out of his new lover.
Robin broke the kiss, breathing hard. Her arms remained wrapped around Luffy as he continued to massage one of her globes.
"I see you like to kiss, hmmm?" Nami commented from the side cheekily.
The archaeologist glanced towards her, spotting the navigator masturbating with her legs spread open without a bit of shame.
"Ahhh… I remembered when he first took me, mmmm… So rough… So good…" Nami reminisced while sliding a finger into her soaking sex.
Robin turned her gaze back to Luffy, finding the youth grinning back down at her.
Determined not to let the younger male take full control of the situation, she reached a hand below to stroke his cock, drawing out a moan of pleasure from the youth.
The smooth feeling of the silk glove against his skin further amplified the pleasure, causing the Marine to shudder slightly at the contact.
Luffy leaned in for another kiss, Robin more than happy to oblige him while her hand remained on his rod, stroking slowly.
Nami moaned at the sight, "How long are you guys going with the foreplay? I'm waiting here as well you know?"
Luffy chuckled as he broke the kiss with Robin, giving her a peck on the cheek before sliding himself down to angle his manhood against Robin's wet entrance.
The older woman gave her consent by spreading her stocking clad legs wider, a gloved hand reaching down to spread her pussy lips apart for him.
Needing no other indication, Luffy pushed himself slowly inside of her, gasping in pleasure as he felt the virgin walls clamp down tightly on the intruder.
Robin moaned helplessly, her hymen tearing without any pain as her brain was already too full of pleasure to feel anything else.
Hearing the usually stoic Robin moan erotically threw Luffy off the edge.
With a speed fast than the eye could see, Robin's babydoll was lifted above her chest and her bra unclipped and discarded away to the side of the bed.
The archaeologist had not even noticed her state of undress until Luffy dived into her bosom, sucking a nipple into his mouth greedily.
As hard as she tried to resist, the older woman could not help but melt in pleasure, her limbs quivering in delight.
Luffy thrusted his hips slowly, making sure to let his new lover accustom herself to him as gently as possible. All the while, his mouth remained latched on her teat, sucking on it as though it was a tasty treat.
Nami moaned at the sight as she crawled forward to help herself to Robin's other nipple, her gloved fingers still working furiously on her own clit.
Robin reached down a hand to stroke Luffy's cheek, her mind trying to form a coherent thought against the flood of pleasure that assaulted her senses with each thrust of Luffy's hip.
"Luf… Ah… Luffy? Kiss me please? Ah..."
The Rear Admiral was only too happy to oblige, his lips releasing the nipple to seek out its new target, clamping tightly down around Robin's lips.
Robin wrapped her stocking clad legs around his waist, pushing him deeper into her with each of his thrust.
Robin screamed into his mouth, her body spasming uncontrollably as she had her very first orgasm with her new lovers. Nami had to release her mouth from the older woman's nipple as she had an orgasm of her own, falling on the bed on her back.
Luffy held the archaeologist tightly against him, his lips still clamped on hers as he waited for Robin to wind down from her high.
Feeling her body relax, Luffy laid her down gently on the bed, Robin gasping for breath as soon as his lips left hers.
"Feels perfect doesn't it?" Nami smirked from the side, lifting her hand from between her thighs to taste herself.
Robin could only nod, not trusting herself to speak at the moment.
Nami laid herself at the head of the bed, spreading her white stockings-clad thighs invitingly.
She curled a finger at her lover with a sultry smile, "My turn."
Luffy smiled, extricating himself from Robin slowly while drawing another passionate moan from her.
The Marine officer lined his cock against his subordinate's eager pussy, sliding it along the entrance to tease her.
The navigator held her breath as Luffy sheathed himself inside her, her eyes rolling back as she felt his rod poke her cervix.
"Ohhhhhh… Riiiight theeeere…"
Nami wrapped her legs around his waist while her hands reached out to clasp Luffy's hands.
As there was no need to be gentle with his subordinate, Luffy began pounding away at her with wild fervent thrusts, hammering the pleasure into her very core.
Nami screamed out her pleasure, her limbs gripping tighter on her lover as he slammed into her without mercy.
Robin watched on without batting an eye, she had already seen the type of lovemaking the two were into after all.
The archaeologist crossed her arms from where she lay, a pair of arms sprouting underneath Luffy's.
The extra limbs reached down to snake under Nami's babydoll dress, pulling down her bra to reveal her naked breasts before each hand latched itself firmly on her bountiful bosoms.
Nami gasped in pleasure, before her mind registered that her hands were already holding on to Luffy's hands and wondered who else could be teasing her teats when Robin was still recovering.
Looking down, she saw the disembodied hands that stuck out of Luffy's sides massaging her chest. Had the navigator's mind not been clouded with lust, she might have screamed out in surprise back then. The only sound that made out of her mouth was another moan of pleasure as Robin's hands pinched at her nipples.
Luffy grinned uncontrollably as he saw Robin use her Devil Fruit powers, his head turning back just in time to catch sight of her sidling up behind him, wrapping her gloved hands around his chest.
"I guess if I get to feel this everyday with you… I wouldn't mind in the least…" Robin whispered sensually beside his ear.
The older woman tweaked her protector's nipples playfully as she planted kisses at his neck, sending shivers of pleasure down Luffy's spine as he continued to pound away at Nami's womanhood.
Nami screamed again as she climaxed for the third time that night, her scream increasing in volume when Luffy did not stop his hips.
With a roar of his own, Luffy emptied his seed inside of her, painting her walls white with his cum.
Nami's vision turned black for a moment, her mind overloaded with sheer pleasure. A light pinch on her nipples from Robin brought the navigator back to the present, her breath coming out in huge gasps as though she had just ran a marathon.
The older woman smiled down at her, "Fufufu… If this is going to be a common occurrence… I think we may need to soundproof our rooms."
"Huff… Huff… Huff… I'll be sure to… Ah… To tell that scrapper to put that in the designs…" Nami said with a mischievous smile.
"Shishishi! That's a great idea! Then Nami won't have to keep trying to hide her voice when we're doing on the ship anymore!" Luffy laughed.
Nami swatted playfully at him before pulling him down for a loving kiss.
Their lips parted with a trail of saliva hanging in between, both lovers staring adoringly at the other's eyes. That was when a set of arms yanked Luffy back, the archaeologist pulling Luffy into an embrace of her own.
Robin reached a hand down to pull Luffy's half erected manhood out from Nami's snatch, eliciting a hiss of both pleasure and protest from the navigator.
Her gloved hand began stroking his member back to full mast while she continued to kiss him, a pair of hands sprouting out from Luffy's sides to massage his balls at the same time.
Nami watched on with interest, many different ideas spinning in her head on what Robin's powers could bring into their nights together.
Satisfied that Luffy was aroused enough, Robin got him to lie on his back, straddling his waist without a hesitation.
"My turn to be on top," Robin whispered seductively.
The archaeologist lowered herself slowly on her protector, sighing in pleasure as he impaled her.
"You sure take to this fast, Robin," Nami noted, propping her head up with an arm.
Robin moaned as she rocked her hips slightly, "Mmmm… You already know I've been watching you two do it almost every other night… Ah… I suppose the transition from an audience to a player wasn't too big of a hurdle."
"Mmhm… Does the fact that sex with him feels shockingly good help?" Nami teased.
The archaeologist moaned even louder when she felt Luffy's cock hit a sweet spot, prompting her to move her hips even faster.
"Mmmm… Ah… I cannot deny that… Ah! That possibility…"
Nami grinned, moving behind her female crew mate to grasp her bosoms.
The navigator breathed into Robin's ear, "If only I got you to join us sooner… So many missed opportunities."
Robin shuddered, mentally agreeing with the navigator as she felt the ex-thief's skillful fingers put to good use.
"Now… One other thing you need to know about sex with Luffy," Nami sent her superior a knowing look. "You're only in control when he lets you."
Luffy immediately grasped the older woman by her hips, raising her into the air slightly before slamming his own hips up to meet her.
The wave of pleasure hit Robin like a ton of bricks, collapsing any form of composure she had desperately tried to keep.
She screamed out in pleasure, an orgasm ripping through her core and her juices gushing out to soak the bed sheets.
"Oh… Looks like I have to make sure the room is doubly soundproofed now," Nami giggled, seeing the look of pure delight on the older woman's face.
Robin shivered, shaking herself out of her stupor. Looking below, she found Luffy grinning up at her, his hands now caressing her own gloved hands adoringly.
She sprouted a hand to caress his cheek with the same level of adoration, and another hand to pinch Nami's exposed nipple from behind.
"Ohhhhh… I really regret not bringing you in sooner now…" Nami moaned appreciatively, digging her hands deeper into Robin's bosoms.
"You are quite the dangerous one Luffy," Robin mused. "I suppose such is expected for the man who could even satisfy the one who holds the title of the most beautiful woman in the world."
Luffy shrugged, "I just do what makes you all happy."
"And you do a very good job at that," Nami breathed, kissing Robin on her neck. "Now go on, you haven't even given Robin your seed yet, fill her up!"
"Ah… A little more gently if you will, Luffy… I don't think I'm quite ready for the rough one yet," Robin moaned.
Luffy obliged, gyrating his hips slowly in a sensual rhythm while his hands remained entwined with the archaeologist's.
Robin rocked her hips in tune with his, drawing out a moan of pleasure from both of them.
Nami massaged the older woman's breasts while hers was groped in turn by two hands sprouting out from her sides. A third hand materialised from between her legs, shoving its fingers into her dripping sex.
The three of them made love to a slow tune, their bodies moving perfectly in sync with one another. Every gyrate of the hips, every breath they took and every moan was done in perfect synchronicity.
When the orgasm finally came, all three of them screamed out their pleasures as one, filling the entire room with a single voice.
Robin let herself collapse on top of her lover, her head nestled in the crook of his neck as he held her in his arms.
Nami fell beside the couple on her back, her head resting on Luffy's shoulder opposite of Robin.
"Oh wow… it felt as though there were four of us instead of three…" Nami gasped, still quivering from her orgasm.
Robin smiled, wrapping her hands around her lover before giving him a kiss on the cheek.
"If you would like to… there's other parts of my body I can sprout other than just hands and feet."
Luffy grinned, "Are we going for another round?"
Nami leaned in to give his other cheek a kiss, "Since when are we ever done with just that? Even Robin knows how long each of our sessions goes."
Luffy grinned at them, his manhood already springing back to full mast.
Their lovemaking did not stop until Luffy made both his lovers into quivering puddles of pleasure.