She remembered walking into Mike's room, smashed on vodka, and him taking out his cock for her appraisal, and then... had she given him a blow-job? Really? Her memory was hazy, but seeing as he was fucking her right now, it was certainly possible. Little Mikey, not so little anymore.
Mike raked his fingers over her back, sending a shiver down her spine. He remembered all the times he'd peeked out from his room to watch Lizzy and her friends -- statuesque, raven-haired Dawn and playful brunette Lara -- knock back a shot or two and then head out in a taxi. How many times had he fantasised about what the giddy trio would get up to on those nights?
Lizzy had barely registered in his fantasies, of course, since she was just, well, his slightly annoying older sister. To be fair, she was as sexy as the others, in her own way. But oh, how she had frustrated him over the years, teasing him, mocking him, always one step ahead, always superior to him. What an amazing emotional rush to now have her bent over the back of the couch, all dolled up in that sexy dress, her pussy yielding to his cock.
Her make-up was getting smeared, and that turned him on all the more. He felt the urge to slam into her deep and hard, but he didn't want it to end too soon. The aftermath of this spontaneous session had the potential to be a little... awkward. Best to make the fun part of it last as long as possible. And he wanted to see what Lizzy looked like when she came...
Lizzy, meanwhile, was on a knife's edge between surrendering to the woozy, lustful sensations of the moment and the conflicted emotions -- indignation? disgust? -- that she felt at submitting her body to her little brother.
This is wrong... God that's good... This is wrong... God that's good...
She had just about gathered the willpower to tell him to take a hike when she felt his thrusting slowing down... and then something amazing happened. Something she had never felt before.
Something was building up inside her... a tingling feeling spreading out from her pussy and now setting her body on fire.
Mike pulled one of her shoulder straps down and scooped up her sweaty tit, rolling her nipple through his fingers. He delighted in the spasms rolling through this hot girl's body -- the fact that she was his sister was now almost secondary -- he could tell she was...
COMING! I can't believe I'm coming! Ohohohohoh...
He worked with it, settled into her rhythm, and she could sense the carnal communication, even smiled as they screwed in sync, thrusting enthusiastically. Her orgasm grew and grew, and she cried out with joy as the sensations pulsed through her body.