Enjoying Life With Do As You Please System

[A/N - Just a fair warning since many people don’t like this. Yoona is actually into NTR, but not the one you think. She won’t cheat or anything, I wanna make that clear. Instead, she has the kink of getting cheated on, understood? So, yes if that isn’t your think, you can skip the Chapter. You won’t lose much, except that it is important for her character so you already know it. Sorry for the yap. Enjoy reading!]

I turned my head slightly and pressed a lazy kiss to the top of Yoona’s red hair. "Hey," I murmured, voice still rough from everything we had already done. "You’ve been so composed this whole time. Even when you were coming on my cock you kept that graceful control. Is there anything... particular you’re into? Some kink you’ve been holding back?"

Yoona went very still against me.

For the first time since I had met her in that military helicopter, a deep, unmistakable blush bloomed across her cheeks and spread down her neck. It was soft and rosy, almost delicate against her pale skin, and it made her look younger, more vulnerable, than the polished Rothschild heir I had seen until now. She tried to glance away, but I caught her chin gently and turned her face back toward me.

"You’re blushing," I said, surprised and more than a little intrigued. "That’s a first."

Yerin’s laugh burst out of her like a champagne cork, bright and delighted. She pushed herself up on one elbow so she could look down at her twin with pure mischievous glee. "Oh my god, he finally asked. Unnie, your face is so red right now."

Yoona’s blush only deepened. She bit her lower lip, clearly struggling to maintain her usual poise. "Yerin..."

"No, no, I’m telling him," Yerin said, still laughing as she flopped back down against my side. "Seth, my perfect, formal, always-graceful older twin developed the filthiest kink because of how strict and proper her life has always been. All that pressure of being the official heir, all the lessons, all the high-society masks... it twisted into something really dirty."

I raised an eyebrow, waiting.

Yerin’s grin turned wicked. "She likes watching her man fuck other women. Like... really likes it. The whole netorase thing. Being the one who gets cheated on, but on purpose. She gets off on the idea of her boyfriend or husband going off and railing someone else while she has to watch or listen."

I blinked, genuinely caught off guard. "Wait. So you’re a cuckquean?"

Yoona’s eyes flicked up to mine, still flushed, and she gave a small, almost shy nod. "Yes," she admitted quietly, voice softer than I had ever heard it. "That is... accurate. One of the reasons I was so willing to share you with Yerin, and potentially others in a harem, is because it lets us roleplay that dynamic without any real harm or betrayal. I can watch you take my sister, or anyone else, and feel that specific... ache. That mix of jealousy and arousal. But you do not have to go along with it, Seth. It is my private kink. I would never demand it."

I studied her for a long moment. The sophisticated, unflappable Yoona Rothschild was still pink-cheeked and waiting for my reaction, looking more human than I had ever seen her. Then I glanced at Yerin, who was watching me with open curiosity and something hungrier underneath.

"And you?" I asked Yerin. "How do you feel about that?"

Yerin’s smile turned slow and filthy. "Me? I get turned on by the opposite side of it. Stealing you. Being the one who takes the man while the other girl has to watch. Knowing she’s aching and wet because I’m the one getting fucked instead of her. The more she has to sit there and take it, the hotter it is for me." She shrugged, completely unashamed. "So yeah. NTR works for both of us. Just from different angles."

[Host,] Paige’s voice whispered inside my head, almost gleeful. [This just went from twin harem to full psychological filth. I am so here for it.]

I exhaled slowly, then reached out and cupped Yoona’s still-flushed cheek. "Alright. We’ll try it. Right now."

Yoona’s eyes widened slightly. "Seth—"

"You said you like watching," I cut in, voice dropping into something lower, more commanding. "So you’re going to watch. Yerin’s going to take what’s yours, and you’re going to sit there and feel every second of it."

A visible shiver ran through Yoona’s body. She nodded once, almost eager despite the residual embarrassment.

Yerin sat up fully, already moving with predatory grace. She swung a leg over my hips and straddled me, reaching down to wrap her fingers around my cock, still half-hard, but thickening fast under her touch. "You heard him, unnie," she said sweetly, eyes locked on her twin. "You’re just the spectator tonight. I’m the one who gets to ride him."

Yoona swallowed and slowly shifted back on the bed until she was sitting against the headboard, knees drawn up, completely naked and already glistening between her thighs again. Her cheeks were still pink. "I... understand."

Yerin didn’t waste time. She rose up, positioned me at her entrance, and sank down in one smooth, wet slide until I was buried to the hilt inside her. A soft, satisfied moan left her lips as she settled fully in my lap. She started riding me with slow, deliberate rolls of her hips, making sure every movement was visible to Yoona.

"Look at how easily he takes me," Yerin purred, glancing over her shoulder at her sister. "Your man is so deep inside me right now, unnie. Can you see the way my pussy is stretching around him?"

Yoona’s breath hitched. Her hands rested on her own thighs, fingers twitching like she wanted to touch herself but wasn’t sure if she was allowed.

I reached up and gripped Yerin’s waist, helping her bounce a little harder. "She’s watching every inch," I said, voice rough. "Every time you sink down on me, she’s thinking about how it should be her."

Yerin moaned louder at that, clearly feeding off the words. She leaned forward, planting her hands on my chest, and started riding me in earnest, long, wet strokes that made her soft breasts bounce and the slick sound of our joining fill the room. "That’s right. I’m stealing him right in front of you. My perfect, formal twin is just sitting there while I fuck the man you claimed."

Yoona’s thighs pressed together. A soft, needy sound escaped her throat. "Yerin..."

"Call him what he is," Yerin ordered, glancing back again. "Say it. Tell me I’m riding your boyfriend’s cock."

Yoona’s blush returned full force, but her voice came out steady despite the heat in her cheeks. "You’re... riding my boyfriend’s cock. You’re taking what’s mine while I watch."

The words alone made Yerin clench hard around me. She laughed breathlessly and ground down deeper. "Fuck, that turns me on so much. Keep talking, unnie. Tell me how it feels to be the one left out."

I sat up slightly, wrapping one arm around Yerin’s waist so I could thrust up into her harder. My other hand stayed free. "Yoona. Touch yourself while you watch. But don’t you dare come until I say so."

Yoona’s eyes fluttered. She obeyed immediately, sliding one hand between her legs and circling her clit with elegant, precise fingers. The sight of her, graceful even in this, blushing and touching herself while her twin rode me, sent a fresh surge of heat through my blood.

Yerin picked up the pace, bouncing harder, the wet slap of her ass against my thighs echoing. "He’s so thick inside me," she panted, putting on a show. "Every thrust is hitting that spot you love so much. But you’re not the one feeling it. I am. I’m the one who’s going to come on your man’s cock while you just sit there and ache."

Yoona’s fingers moved faster. Her breathing had turned shallow. "I can see how wet you are for him... how you’re taking him so deep... it should be me..."

"But it’s not," Yerin moaned, clearly getting off on every word. "It’s me. I’m the one stealing him. And you’re just the pretty little cuckquean who has to watch."

I groaned at the filth of it and flipped us without warning. Yerin landed on her back with a surprised gasp; I hooked her knees over my shoulders and drove into her in a series of deep, powerful thrusts that made the entire bed shift. Yoona had a perfect side view now, every inch of my cock disappearing into her sister, every bounce of Yerin’s breasts, every open-mouthed moan.

"Look at her taking it," I growled, glancing at Yoona while I fucked Yerin harder. "Your twin is getting pounded by the man who just agreed to be yours too. How wet are you right now?"

"So wet," Yoona whispered, fingers still working between her thighs. "Seth... please..."

"Please what?" Yerin managed between moans, eyes locked on her sister. "Please let you join? No. You’re staying right there. You’re going to watch me come on him first."

I reached down and rubbed Yerin’s clit in tight circles while I thrust. She came hard almost immediately, walls clamping down around me in rhythmic pulses, a broken cry tearing from her throat as she arched off the bed. I fucked her through it, dragging the orgasm out until she was trembling and oversensitive.

Only then did I pull out, cock glistening with her release. I looked at Yoona. "Your turn to feel how much I just used her. Come here and clean me off. With your mouth. While she watches."

Yoona crawled forward on her hands and knees, still flushed, and took me into her mouth without hesitation. She sucked slowly, tasting her sister on me, eyes flicking up to meet mine. Yerin propped herself up on her elbows, watching with heavy-lidded satisfaction as her twin cleaned the cock that had just finished inside her.

"That’s so hot," Yerin murmured. "Look at you, unnie. Sucking the cock that just came from fucking me. You’re such a good little cuckquean."

Yoona moaned around me at the words. I let her work for another minute, then pulled free and guided her onto her back beside her sister. I pushed into Yoona in one smooth thrust, burying myself deep while Yerin immediately leaned over and started kissing her twin, whispering more filthy encouragements against her lips.

"Feel that? That’s the same cock that just finished with me. He’s using you second. You’re the leftovers tonight."

Yoona’s walls fluttered hard around me at the dirty talk. I fucked her with the same deep, steady rhythm I had used on Yerin, making sure every thrust was visible. Yerin reached down and played with her sister’s clit, fingers sliding through the wetness where we were joined.

"She’s so tight for you," Yerin said to me, eyes gleaming. "Even while she’s being the one who gets cucked, her body is still greedy for it."

I leaned down and kissed Yoona hard, then spoke against her mouth. "You’re going to come while your sister watches me fuck you. And you’re going to thank her for letting you have a turn after she stole me first."

Yoona’s eyes were glassy with arousal and the specific ache of her kink. "Thank you, Yerin... for letting me have him after you... ah—"

Yerin kissed her again, smiling against her lips. "You’re welcome, unnie. Come for him. Let me watch you fall apart on the cock I just finished with."

I rubbed Yoona’s clit in firm circles and thrust deeper. She came with a long, trembling cry, walls pulsing around me, her elegant composure completely shattered as the orgasm rolled through her. I followed a few strokes later, burying myself to the hilt and pumping thick ropes of cum deep inside her while both twins watched.

When the last pulse faded I stayed inside her for a moment, then slowly pulled out. Cum immediately leaked from Yoona’s well-fucked hole. Yerin didn’t hesitate, she leaned down and licked it up in long, thorough strokes, cleaning her sister while making sure Yoona could feel every swipe of her tongue. Then she crawled up and shared the taste in a deep, messy kiss.

I collapsed onto my side, pulling both of them against me again. Yoona’s blush had faded into a soft, satisfied flush. Yerin looked smug and thoroughly pleased with herself.

"Still okay?" I asked Yoona quietly, brushing a strand of red hair from her face.

She nodded, voice a little hoarse. "More than okay. That was... exactly what I needed."

Yerin nuzzled into my other side with a soft laugh. "Told you she was filthy under all that grace. And I got to steal you right in front of her. Best of both worlds."

I kissed the top of each of their heads in turn, already feeling the slow, inevitable stir of interest beginning again despite how thoroughly spent I was.

"Good," I murmured. "Because I don’t want to do anything that harms you two."

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