An hour has passed since Rito had laid on his bed, deciding to sleep off his arousal. The house fell quiet, save for the faint, muffled sounds of the girls talking in the living room downstairs.
Click.
Rito's eyes snapped open.
His enhanced hearing caught the sound of his bedroom door handle turning. It was faint, like the sound of someone deliberately trying to be stealthy.
The door opened with a soft, nearly silent whoosh.
Rito's heart hammered against his ribs. His initial thought was that it was Mikan, sneaking in for a late-night cuddle and sex. Or maybe Run, or Sachie and Mami, or maybe even Lala or Haruna, who had come for the same reason.
Thinking about it, he felt a massive surge of anticipation.
He propped himself up on his elbows as a slender silhouette slipped into the dark room.
The door shut just as silently as it was opened, and the lock clicked into place, sealing them inside.
"Who is it?" Rito whispered into the dark.
"Why don't you take a guess, Rito-san."
The voice was soft, melodic, and dripping with a sultry, playful intent.
The moonlight filtering through the window illuminated the figure standing at the foot of his futon.
It was Momo.
Rito's breath hitched violently. He sat up completely, clutching the blanket to his chest in shock.
Momo was wearing a nightgown, but to call it sleepwear was a vast understatement. It was a silky, lavender slip that left absolutely nothing to the imagination. The thin straps dug into her pale shoulders, clinging to her soft B-cup breasts. The fabric clung to her curves, dipping dangerously low in the front and stopping perilously high on her thighs. Through the translucent silk, Rito could clearly see the pink outline of her areolas and the shadow of her panties.
She looked incredibly seductive, and entirely out of place in his modest bedroom.
"M-Momo-san?!" Rito gasped, his face became red as he tried to look away but failed completely. "W-What are you doing in here? Nana-san is going to kill me if she finds you here!"
Momo giggled softly, a sound like chiming bells. She took a step forward, completely unbothered by his panic or her own lack of clothing.
"Nana is already fast asleep in her room in onee-sama's dimensional space," Momo reassured him, her tail swishing languidly behind her. "As for why I'm here... it's because I couldn't sleep, Rito-san. My mind has been racing ever since we returned to Earth."
Without asking for permission, Momo gracefully climbed onto the edge of Rito's bed bringing the intoxicating scent of her floral shampoo and the warm, musky scent of her arousal directly into Rito's personal space.
She crawled closer on her hands and knees.
"You know, Rito-san," Momo purred, stopping just inches from his face, forcing him to look directly into her purple eyes. "You are becoming an incredibly fascinating person of interest to me."
Rito swallowed hard, leaning back slightly on his hands, though his traitorous dick throbbed against his boxers, eager for her proximity. "F-Fascinating? I've done nothing to earn that kind of praise, Momo-san. As a matter of fact, I consider myself a normal guy."
"Oh, please," Momo smiled, a wicked, knowing glint in her eye. She reached out, her fingers tracing the line of his collarbone, trailing down to rest lightly on his chest. "There is absolutely nothing normal about you. I've been watching you, you know."
She leaned in closer, her breath ghosting over his lips.
"I see how they look at you," Momo whispered. "Onee-sama, who, even though a bit clumsy and naïve, is a genius inventor and the First Princess of the planet Deviluke. Run-san, a member of Memorze royalty, and now, a galactic idol who could have anyone she wants. Mikan-san, your own sister, who is practically glowing with her affection and care towards you, not to mention her mischievous little friends. And lastly, Haruna-san, who looks like she'd follow you into a black hole."
Momo's hand slipped lower, her palm resting flat against his abs, just inches above his aroused dick hidden by the blanket.
"You have managed to completely captivate so many girls, all with distinct, strong personalities," Momo continued, her voice trembling slightly with genuine awe and rising lust. "And even more incredibly... you have managed to convince them to coexist. You've brought them all under one family, despite the strict monogamy customs of this planet."
She licked her bottom lip, her gaze dropping to his mouth.
"I want to know your secret, Rito-san," Momo breathed. "I want to know what makes you so special that all these women are willing to share a single man."
Rito's face was burning, his mind racing. He was cornered. He wanted to tell her that there weren't any tricks or such, that it was just pure love and a refusal to let anyone be hurt, but her proximity and the erotic nature of her interrogation were making it impossible to focus enough to form a coherent sentence.
"M-Momo-san, there are no secrets," Rito stammered, trying to gently grab her wrist to stop her hand from wandering lower, but lacking the actual willpower to push her away. "I just... I love them. All of them. Even if sounds incredibly selfish, I don't want to lie about it."
"Love?" Momo echoed, a soft, cynical smile touching her lips. "Is it just love? Or is it something more... physical?"
Momo shifted her weight, deliberately bringing her face inches from his ear.
"You see, Rito-san," Momo whispered, her voice dropping to a breathy, heavily aroused purr that sent a violent shiver straight down Rito's spine. "When I said I've been watching you, it didn't mean just today in the bath. I've been watching you since we arrived."
She paused, letting the silence build the tension in the dark room.
"I've even peeked through the door once," Momo confessed, her breathing turning shallow as the memory flooded her mind. "That night, when you and Mikan-san were together in her room. I saw everything."
Rito froze entirely. The blood rushed from his face, then rushed back twice as hot. "Y-You... you saw...?!"
"Yes, I saw how you pinned her down," Momo continued relentlessly, her fingers curling slightly against his stomach, practically clawing at him in her remembered arousal. "I saw how you completely destroyed your own sister's reason for hours. I saw the massive volume of your seed flooding her. I even heard her screaming your name, begging you to fill her up."
Momo pulled back slightly to look him in the eyes.
"Just thinking about it..." Momo whimpered softly, pressing her thighs together tightly. "Just thinking about that terrifying beast-like stamina... about that massive weapon of yours claiming a girl so thoroughly... it makes me so incredibly wet, Rito-san."
She leaned forward, pressing her soft breasts directly against his chest, eliminating the last barrier between them.
"If possible, I really want to know what that feels like," Momo spoke softly, her gaze dropping to the prominent bulge beneath the blanket.
She looked back up at him, her expression a mix of demand and genuine curiosity.
"Tell me, Rito-san," Momo whispered, her face inches from his. "How did you accomplish all of this? How did you build this incredible, loyal harem in just a few months since onee-sama arrived? What exactly are you?"
Rito was in a bind, things were moving way too fast.
His brain was screaming in caution, that he must not rush his relationship with Momo, but his body was roaring in approval.
He opened his mouth, desperately searching his mind for a way to diffuse the situation.
"Momo-san, I..." Rito started, his voice cracking.
Knock. Knock. Knock.
Three sharp, distinct knocks echoed, striking the wood of Rito's bedroom door.
Rito and Momo both froze, their heads snapping toward the entrance.
The heavy, suffocating tension in the room shattered instantly. Someone was standing right outside in the hallway.
And Rito was currently on his futon with a half-naked alien princess, who was also technically his future sister-in-law.
*****
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✓ Killed For 100 Years in Hueco Mundo, Aizen Invited Me To Soul Society!
✓ Naruto: Senmei Asahi
✓ Naruto: Uchiha's Intelligence Dealer
✓ Naruto: The Fifth Hokage Is Naruto's Uncle
✓ Naruto: Who Made Him a Ninja?
✓ Bleach: In My Second Reincarnation, I Became The Ninth Kenpachi
✓ To Love-Ru: Spoiler Route [R-18]
✓ Naruto: The Accidental Incubus [R-18]