Roommate comes back

Brian was still in the middle of jerking off when he heard his roommate entering the flat. He wasn't alarmed though, Liz knew better than to walk into his room unannounced. And most of the time she came back from college and immediately went into her room to hit the books anyways. She was good looking, nothing special, but nice enough for him to often fantasize about burying his cock inside her. Not that he really could at his size, but then his mind was constantly having horny thoughts with his perpetual boner, nothing he could really do about. Slowly he worked his shaft and looked at the wall that separated their rooms. He knew he would have to take it quiet, but he was used to it. Images of her naked popped into his mind as usual at this point. Not that he had seen her naked yet, best look he got was her in underwear, but his dirty mind was well capable of filling in the rest. She had a good body, went to the gym twice a week, but lacked a bit in the boob department for his taste. Her face was nice, too, he especially liked her lips. And just like that he imagine her sucking on his dick once more.

"Fuck..." he cursed. This constant erection was seriously gnawing on his sanity at times, but he knew he would feel better once he had rubbed one out. At least for a while. He listened as she walked into the bathroom, followed by the sound of rushing water a moment later, which kinda got him stuck on imagining her naked in the shower, soaping herself very sexily. Eventually he remembered the program and how it somehow was able to show him a picture of himself. Sure it was all fake, but could it show him a pic of her? He had no idea how that would be possible, but he was horny enough to give it a try. A moment later he had it booted up, and entered her name.

Extend awareness settings to new subject?

Brian stared at the prompt on the screen for a few seconds till he had focused enough to grasp what he was asked. Whoever made this fake app certainly had been very creative. He clicked yes, because if it was real, he probably would do exactly that. Much to his surprise it was followed by a pic of Liz on his screen, naked, and according to the pose showering, with all those stats around her.
"How the fuck..." he wondered. Could he have been mistaken? Or was there a cam in their bathroom? Briefly he felt very watched, but only till he looked at her boobs for a bit too long, and his overloaded mind couldn't help but to wonder how she'd look with bigger ones. Curious as he was he raised the slider, but immediately he was reminded that this program was fake. She still showed up with her D-cups as before, even though he had raised it by at least three cup sizes just a moment ago. Getting slightly angry he moved it all to the max, but there was absolutely no change of course. But he had to give the author credit for a keen eye for details, as when she moved her boobs were squeezed by an invisible shower cabin wall, which was probably what was happening right now, given her size. At least he got a good show out of this, even though he definitely had to check for hidden cams in their bathroom now.

Rubbing his dick to the sight of the goddess that was his roommate, he managed to get to the edge rather quickly. But since he knew it wouldn't end his arousal for long, he decided to just stay there a while longer. At least while he had the pleasure of watching Liz jiggling her giant boobs at him. Two minutes later his brain was barely capable of thinking about anything else but sex anymore, and the whole thing became like a test to see how long he could hold it. The tissue was ready, but he was just not yet ready to fill it. Eventually he found that text box that was supposed to allow him to enter free text commands, and he couldn't help but to write down some of the fantasies that were on his mind at this very moment.

Liz is usually naked at home and loves to show me her body.
Liz loves playing with my cock all day long, it's her favorite hobby.
My jizz is her favorite dish.

At this point his fantasies got the better of him and he blasted his juice right into the tissue he had prepared. Lucky for him his balls had never grown as stupidly huge as his dick, so he could comfortably catch it all. After his usual ride to heaven and back he eventually came back to his senses and the arousal faded, at least for now. As he discarded the tissue into his bin, he couldn't help but to smirk, as he already knew Liz would complain again for wasting "the good stuff." He looked back at the screen and watched her dry herself with an invisible towel. Once again he couldn't help but to wish that this app was in fact real, but aside from the burning question how it was able to record other people it hadn't done anything so far. He closed the app and opened his browser, to at least look innocent for the inevitable that would happen in a moment. Or at least as innocent as someone with a 20 inch boner could look like.

"Hey..." Liz chirped from the doorway. He immediately smelled her lotion, and his eyes fixated on those massive, wobbling orbs in front of her. "I hope you didn't waste any of the good stuff?" Her voice almost sung sex as she approached him seductively. Brian had no idea how he got so lucky to be paired with a girl that not only looked sexy as hell, was a nudist, but also totally a size queen. With a sly grin he watched her climb into his lap and wrap her lips around her favorite toy, pressing her boobs against his chest, and sandwiching the rest of his shaft between them.
"Oh, you are a bad boy!" she suddenly hissed when she tasted the remains of cum on his tip.
"Don't worry, there is always more where that came from." he laughed. Luckily he was blessed with a dick that never went down. Any other man would have been incapable of satisfying her constant hunger for dick. And Liz definitely knew the benefit of living with the biggest breeder boy in town. Soon enough Liz was once again in her almost trance-like rhythm of sucking his dick, her hands at his base and balls, her tongue caressing his tip, and her gigantic tits in between. They would probably spend the rest of the day like this, unless she had some studies to do, but he was very far from complaining about any of this. And soon enough approaching the edge again. Liz was just too good at this after all these month...