“Claire, think of a world where you don’t have to feel guilt over your desires. Isn’t that what you want?”
Claire nodded absently, shocked and hypnotised by the drop of pre-cum forming on the head of Lily’s cock. She licked her lips.
“Good girl. Now all you need to do is exactly what you want to, right now.”
Claire needed no further instruction. She leaned forward, feeling the heat of the cock on her face, seeing the pre-cum start to drip. She led with her tongue, and closed the gap, as the low morning sun streamed into the room and Rob’s hard cock throbbed in her mouth.
“Oh fuck, yes Claire, I’m gonna cum.” Claire urged Rob on, sucking and licking, until Rob unloaded in her mouth. She swallowed, relishing the flavour of her closest friend. Rob moved suddenly, rapidly, grabbing her by the shoulders, pulling her forward, as she crawled up the bed. She knew what he wanted, and had no objections. She set her wet slit directly onto his hungry, open mouth. He attacked her clit, circling with his tongue, darting down to enter her with his tongue and slipping back for a renewed assault. He seemed to know exactly what she needed – every time her clit felt over-sensitive he moved his attentions down for a moment, giving her a chance to recover before returning to drive her further, onwards, towards the wet, screaming orgasm she wanted. She grabbed Rob’s hair, forcing his face tight against her as his hands pulled her hips down, the pressure pushing her over the edge. Her orgasm was so strong she saw everything go white. When she came to, she had slid back down Rob’s body, his revived cock pushing at her entrance.
She kissed him hard, tasting the remnants of herself on him as he could surely taste his on her, and pushed herself down. They fit together so well there was no need to even guide him into her, instead they slowly eased together, feeling every inch of their union, the soft walls of her pussy cradling the hot thumping width of his cock. They slid apart, moving as one, her breasts flattened against his hard chest, her hair forming a curtain around them, blocking out the rest of the world. They kissed deeply again, feeling the love for one another they had repressed for years. They had wasted so long hiding behind their friendship, but the wait had made this all the better. They slowly approached the point of no return together, and heard a soft giggle in the air.
Claire pushed herself up, looked down, and saw her brother’s dick in her pussy. She looked up at him, and back down, as if she couldn’t believe it. It had happened again. It was happening again. And the worst part was, it felt incredible. She looked into her brother’s eyes and saw the same conflict. He pulsed with need inside her. She raised her hips, and felt an emptiness within that begged to be filled. As if automatically, she moved back down, burying his cock deep within her, fulfilling her need. She did it again. Again. Rob’s hands reached for her hips, and started to gently pull her off. Thank you for being stronger than I am,she thought. A split second later, she let out a gasp as her brother slammed her down on top of him again. Her body dropped, closer to his, breasts dragging across his chest.
“Fuck, sis, I can’t stop.”
She moaned in response, and slammed her hips in time with his movements. “Don’t stop Rob. Fuck me. I don’t care if it’s wrong. I can tell you don’t either. We’re already doing it, let’s enjoy ourselves.”
Rob reached out a hand to her head, and pulled her in for a passionate kiss, tongues flailing wildly. The sensation pushed them both over the edge. Rob grunted into her mouth, and Claire into his, as his cum poured into her spasming pussy.
Claire rolled off him, and Rob found himself reaching for her hand. She grabbed it tightly, and the two sat in silence broken only by their heavy breathing. Eventually, Rob spoke.
“I don’t think it was the carbon monoxide.”
Claire let out a laugh, harder than she had intended to, carrying away some of her stress over what they had done. “I think you’re right Rob. I don’t know what’s changed in the last few days, but something has.” She saw him nod in agreement, and couldn’t resist. “Or did you feel like this before? Is my little brother a perv? Have you been stealing my panties for years?”
“You started fucking me first!” Rob fought down the urge to engage in absurd sibling bickering as he saw the teasing smile on Claire’s face. “No, I never felt like this before. A couple of days ago I think I realised how fucking hot you are. Oh are you nodding? You think you’re hot do you?”
Rob could tell he had scored a point when Claire’s face turned pink. “No, idiot, I felt the same about you. When did you get so sneakily hot? Have you been working out?” She paused. “This is so weird, but the weirdest part is how it should be weirder. I think my brother is hot. I just came on my brother’s cock. I’m saying these things and it’s just normal“.
“Yeah. That’s weird. That’s very weird. My sister is full of my cum, and that’s fine. Somehow.”
They fell back into silence. After a while, Rob asked The Question.
“So are we going to stop doing it?”
Even as the question left his lips, he thought about it. Not, “are we going to do it again”. “Are we going to stop.” Continuing is the default. He could see the same internal questioning in Claire’s eyes. She sat in thought for a moment, and he gazed over her body while she did. Lying on her side, hand in his, breasts hanging slightly to the side, her sex just hidden by her thigh. He found himself getting hard again just looking at her.
Eventually, Claire answered. Not with words, but by slowly moving her lips to his. The kiss was full of love, soft, but with a burning passion. Their lips parted, their tongues reached out to softly brush one another. They had decided. Claire looked him in the eye, and said “We need to be caref-”
She was interrupted by a party-squeaker going off somewhere in the room. The freshly minted incestuous couple sat up, panicked that someone was watching them, to see Lily standing on the foot of the bed. “Good job perverts!” She shouted, a mad grin on her face. “Another successful conversion. You guys picked it up quickly though didn’t you! Last pair I had in here took months of work before they even thought about fucking each other, but you two are at it like a pair of dogs. Sexy dogs though.” She dropped to her knees. “I think we should celebrate, don’t you?”
The siblings felt like they knew this woman, but couldn’t say where from. Her presence felt totally natural. They had accepted her along with her influence. As long as they kept up with what she wanted, she was welcome.
“I’ll take your silence as a ‘yes’ then,” Lily said, sliding her unusually warm hands up their legs, up to their hips, as she crawled up the bed. In a flash, she was over both of them as they lay on their backs. Claire watched as Lily leaned in to kiss Rob, her heavy breasts clearly unsupported in her blouse, her short black skirt riding high to expose the stocking tops on her long nylon-clad legs. Watching their lips meet, Claire felt a pang of jealousy. Or possibly envy. She licked her lips, and was left alone for only a moment as Lily moved to kiss her, the too-warm hands sliding over her naked chest, caressing her breasts and tweaking a nipple, eliciting a brief moan. Claire felt Lily’s tongue in her mouth, and found herself reaching for this strange woman’s breasts as if it was the most natural thing in the world. She grabbed one with one hand, feeling its warmth and weight, felt it add to the growing wetness she felt between her thighs. Her hand reached for Lily’s other breast, only to find Rob’s already there. Lily pulled back to let Claire give Rob a half serious glare, before the siblings moved in for their own passionate kiss.