Rob could wait no longer. He grabbed Claire’s ass in both hands, and slid her the whole way up, before sliding her back down with a slap. Her mouth opened in an O of pleasure, unable to make any sounds. Rob did it again. Again. He soon found himself fucking her with wild abandon, pausing only to share a soulful kiss as she ground hard on his cock, and to kiss and caress the incredible tits bouncing in his face.
They repositioned when Rob’s arms started to burn. Claire lay on her back on the couch, and Rob slid back inside her, his weight perched above her in a way that would be awkward if either of them could care. The transformation of their friendship into something far more important, far more fulfilling, was the only thing that mattered. He started slow, one hand supporting himself, one driving slow, soft circles around his lover’s clit. Soon, he was thrusting hard, Claire’s legs wrapped tightly around him, urging him onward, and he started to pump harder and harder. After a minute, Claire let out a long, low moan and he could feel the tell-tale clench of her pussy on his cock as she came, hard. That was enough to push him to the edge.
“Are you on the pill? Can I cum inside?”
“Cum wherever you want, I’m yours.”
That was all Rob needed. He tried to distract himself, to hold off as best he could. He looked to the TV, and saw that the woman from before was fisting herself, deeply, obscene splashes of her cum flying everywhere. She seemed to see him watching her, and blew a kiss in his direction. He looked back down, and crossed the line seeing the smooth, hot, naked flesh beneath him, her breasts bouncing under his thrusts, her face twisted in pure pleasure. His body tingled with electricity as he dumped what felt like a pint of cum into Claire. Into his sister. He froze, hard cock still inside her. The horror in his face was reflected in hers as her eyes shot open. What were they doing?
He pulled out. They both sat up, as if in a daze. How had this happened? Claire practically sprinted upstairs. Rob felt like he should follow her and apologise, even though he knew they had both wanted it, both taken each other as much as they had been taken. Instead, he crept back upstairs to suffer a restless night.
The next morning, Claire woke early, feeling a heavy pit in her stomach. How could they have done that? She crept down to the kitchen to find Rob already there, drinking a coffee in the freezing kitchen, all windows open. They locked eyes and quickly looked away. Rob spoke first.
“You know, we still don’t have any internet so I can’t check, but I think that we might have had carbon monoxide poisoning. It would explain.” Rob paused for several moments, staring into the distance. “What happened. I’ve opened all the windows. I’ve called someone to take a look at the heating and the fire, he’ll be here in a few days. The house will be cold until then but I think it’s worth it. To be. Safe.
Claire’s mind leapt at the chance for an out. “That makes perfect sense. I don’t think we need to talk about it any more – we weren’t responsible. It was” amazing “wrong, and we both know it”.
Rob nodded, and she noticed he was staring. She looked down, and saw her hard nipples poking through her shirt. Rob cleared his throat, half-stood, and shuffled out, clearly concealing an erection. Claire felt herself grow damp at the thought of it, and set about working on the house.
The day’s work seemed to conspire to recall the previous night. Claire couldn’t seem to turn the corner without finding Rob, stripped to the waist despite the cold air, hard at work nailing paneling to a wall. Rob seemed to find her when at her most exposed – entering the room when she was on her knees, ass in the air, cleaning under the furniture. Every time they saw one another, they retreated with faces blazing. Lunch was eaten in silence. Dinner was eaten with no more than a “pass the salt”.
After a cold shower, Claire found herself fully clothed in bed, shivering and freezing. The weather was supposed to be much more mild than this! After a while she knew she needed the only other safe source of heat in the house. She walked sheepishly to Rob’s room, to find him shivering the same way. He lifted the covers, welcoming her warmth, and she slid in. For a few minutes, they said nothing, keeping as much distance between them as possible while staying wrapped in the sheets.
“This is only because it’s so cold Rob.”
“I know.”
“I am aware that you’re my brother.”
“I know, sis.”
“All right. I just wanted to make that clear before I said this. I’m still freezing. We need to take off some of these clothes to heat the bed.”
Rob paused for a moment, and Claire wondered if she was going to be kicked out. After a tense second, he started to pull off the thick clothing he was wearing, soon stripped to just his underwear. Claire did the same, and reached out towards his chest. He yelped as her icy hand found him, and she shouted in return as his cold hands found her bare back. In a moment though, her head was on his shoulder, and her legs against his, as they basked in each other’s warmth. Claire quickly realised Rob was asleep, and carefully rolled away. She wanted to stay close to him, but something required her urgent attention. She lay on her back beside Rob and slid her hand down to her soaking, throbbing pussy. She wasted no time, sliding two fingers inside herself and grinding her clit with the heel of her palm. She added another finger, and thought back to the feeling of Rob inside her, the feel of his hard cock pushing all the way inside, cum shooting into her. She came, as hard as she had the night before, and bit her free hand to stay silent. She lay on her back for a moment, breathing deeply, wracked with shame and flooded with relief at scratching a day-long itch.
After a moment, she rolled over towards Rob and his warmth, only to be met with a woman in his place. A woman with a face that looked like a feminine version of Rob. She let out a short squawk.
“Where is Rob? Who are you!? How long have you been there?”
“My name is Lily, and I’m here to make you feel better.” Lily moved herself closer, towards Claire’s face. “I’ve been here so very long, and of course I’ve been watching you, and listening to you. How else would I know your filthy little secrets.” This last, Lily whispered directly into Claire’s ear, dark red lips shining in the moonlight. Claire shuddered. Somehow, this woman knew. She knew what they had done. Lily let out a low breathy laugh, and continued. “There’s nothing wrong with it you know. I can tell the guilt is eating you all up, but I can make it go away.” Claire found herself transfixed by Lily’s dark red lips, and felt the overwhelming urge to kiss them. She was straight wasn’t she? Maybe she had been.
“Give into your desires Claire. There’s nothing wrong with what you want.”
Claire closed the rest of the distance between her and Lily, feeling the incredible softness of her lips, feeling Lily’s hot tongue snake out, further than she thought possible, to fill her mouth. Claire let out a moan as her body started to tingle with pleasure, and she reached across the gap to Lily, finding the hot bare skin of her waist. Their tongues lashed as Claire slid her hand down Lily’s smooth hip, onto her thighs, when she felt something bump against her wrist. She pulled the covers down to let in the warm air of the room, and reveal Lily’s throbbing cock.