He Checks the App

Brandon decides for somewhat of a half measure, not willing to spook his not so pure sister. He pulls the covers over his head just like her and listens for a reaction.

None.

She's engrossed in his "photo" and assuming he's asleep. Just like he wanted. However, she might think something suspicious if she finds what he does next. He pulls out his phone and checks the app. Turns out, he got an achievement (actually, two).

Revelations - Reveal your naked body to your sister, even if by accident. Gain: Bella +15 Depravity, +25DP

Tinkerer - Use a recently acquired trait with a registered user. Gain: +25 DP.

He collects them and then pauses. The temptation to use the DP right now lingers in his mind. He imagined her tits or ass growing as she diddled her tight pussy. He shook his head. Bella may be horny, but he knew her well enough to know that she wasn't yet ready for what was coming her way. He pulled up her profile and stared at her form. She lay on her back, one hand in her pussy and the other on her phone. When he switched it to nude, the phone disappeared and all that was left was to watch the show. It was a little weird seeing her hold nothing in the air as she stared at it, feverishly biting her lip and squinting as she felt the waves of pleasure in her body. Her form was impeccable... Brandon wasn't sure he wanted to change anything about her.

Her fingers rubbed soft circles around her clit and every once in a while she would stick her fingers into her sopping folds and use it as lube. She didn't have long finger nails like other girls. She was practical in her choices, that played to her favor when she needed to rub one out it seemed. The gentle pads of her fingers rubbed softly among the soft petals of her pussy and Brandon couldn't look away, entranced by his sister, getting off to him. He pinched to zoom and dragged the view around to below her crotch, looking up at her as she writhed around and found the spots that made her tingle so deeply. Her body moved like some deep dark pleasure inside her needed to escape and Brandon couldn't resist placing a hand on his cock and starting to jerk, stealthily at first.

It was a newfound joy jerking a cock that truly seemed meant for pleasure... and soon pleasuring. It was girthy and fun and stayed stiff as he needed. The pleasure he felt in his loins and the debauched display of his sister urged him to speed up the intensity. As he beat his meat, tenting the blankets that covered him, his silent strokes gained volume and reverberated in the room.

"Fuck, Brandon. Take me.... all the way." Bella moaned quietly as she imagined his massive rod pummel her insides, filling her so deeply that she couldn't function. She was close to climaxing, her mind consumed with the image of her brother's beast pummeling her like the naughty girl she is. She felt shame for this sick desire and that shame turned her on further, making her feel worse and worse for wanting it, but better and better about the release that would soon come.

Brandon heard this whisper and read her lips and finally let loose, smacking his meat intensely as he knew his climax would come soon enough.

This time she finally heard him.

Brandon watched as her body froze and so he did as well, his pulsing cock yearning him to pump again with each heart beat.

Hearing nothing, she resumed... drawn by the same pounding inside her. She hoped it was all in her head, but a part of her relished the thought that he knew. He knew she took the picture. He knew that she was fingering her wet, messy pussy to his thick, veiny cock. Oh, it turned her on that he might imagine the same thing... that he would share this sick fascination. Each thought of incestuous desire swirled around her head as her fingers did the same.

Again Brandon continued his pumping, the image of his sister, wholly unable to stop herself from her self ministrations. He wouldn't lie. He shared this same problem. Maybe they were fucked up twins, fucked up from birth. Sharing the same DNA that twisted their minds, made them long for something that could ruin their lives. And still, the thought of fucking Bella's brains out, making her moan as he penetrated her perfect pussy, and bursting inside her was too enticing to not beat his meat to.

The sound returned and Bella listened intently, without stopping the motions of her hand. She was aware that this sound was not just in her head. She had to know if he was doing this for her. She stopped again, her hand shook, determined to continue, but her mind needed to know. The sound stopped. She continued, listening closely. Sure enough the sound resumed as she did. He was stroking to her. Fear crept into her mind for a brief second, but was quickly subsumed by desire. She worried about him knowing: what she did, what she is doing, and that he tricked her into it. But the last part is what made her feel different. He let her do this and he didn't confront or make her feel weird. He didn't impose on her. He is just letting her feel these feelings and doing the same for himself. He might be imagining the same things she was? All of these thoughts flooded into her brain, a mess of feeling and desires all eventually colliding into a big, sexy ball of desire that made her body shake and her fingers prod at her aching core in a way that tipped her right over the edge of desire and into the most powerful orgasm of her life.

"Fuuuuuuu---" She moaned, her entire body shaking as pleasure shook through her. She wanted to moan his name, but instead she dropped the phone and covered her mouth as her legs clenched. She knew he knew, but she didn't know what would happen if she acknowledged it. So she rode out her climax and imagined him doing the same.

Turns out she didn't need to imagine much. Brandon was blowing his load all over the inside of his sheets. He just watched the single sexiest thing in his entire life. He had never felt desired like this and had never really felt as sexually attracted to Bella as he did now. But as he plastered his chest and sheets and chemicals flooded his brain, he realized that he hadn't planned for cleanup. As he stroked out his oozy mess, wishing he didn't have to put down the beautiful image on his screen another popup achievement appeared. He didn't have time to read it though as he saw Bella's orgasm subside and her swipe off the sheets. He set his phone down and froze yet again as her footsteps closed on him.

Brandon half expected her to flip the sheets off or something, but instead... she just stood there. Then he felt a hard flick against the wet stain that had formed at the tip of the tent in his bedding. "Ow!" He yelped, pulling the sheet down to see Bella stand before him, a contemplative look plastering her face. Her eyes looked past her and then finally focused on him, like she was searching for words or an explanation.

"You're a perv." She said half-heartedly, her eyes flitting away, hands clutched to her chest.

Brandon nodded, feeling a knot in his chest. His eyes stared into hers, wishing he could spill open that skull of hers and see what she actually felt. "You too," he said with the smallest of smiles creeping up his face.

Her eyes caught his and he could just barely make out a smile as her eyes turned up and her body turned to leave.

He reached out a hand to grab hers before she could walk away, wishing she wouldn't leave just yet. "Did you like it?"

Her head whipped around as her arm pulled away, fear in her eyes. "Brandon, let me go." He held on as she pulled away. Her eyes softened, pleading release. "Please." He let go and she plopped back down on her bed, lifting her head up to stare at him in the low light. The silence stood far too long for both of them. Bella weighed her desires and Brandon wondered if he had fucked up. Then she spoke. “Don’t tell anyone or it won’t happen again,” she said as she curled back up into her sheets.

“Again?”

“I’m deleting the photo.”

“No you aren’t.”

“Goodnight, perv.”