Someone started to tug on my pussy lips, rubbing them between their fingers, pulling them apart so I could feel cool air on my most private parts. It ...felt incredible, so demeaning and exhilarating at the same time. A finger entered my pussy, fast and relentless, and I became aware that the pair of lips kissing me had changed, that it was now Liz’ tongue wrestling with mine, black lips pressing against mine. A fingernail scraped over my clit. At the same time, soft lips wrapped around my left. I lifted her legs shining in sweat and wiped some of her pussy cream off my dick onto my fingers. I then used that cream to slowly wet and finger her asshole. After she got caught her breath and was relaxed, I slowly started to work my hard dick into her ass. I started with the tip and went in and out slowly until she started to pull me in to go deeper. After her asshole was broken in, I fucked her a little harder. She was rubbing her clit while moaning with ecstasy. I started to whisper dirty. Up and down. Up and down. Stroke, stroke, stroke ... After just a few seconds, all my stress, all my tension melted away. A peaceful inner voice told me how right this was, how helpful I was being ... I was helping my brother. I was helping my brother with a problem. That was all it was - there was nothing strange about helping my brother.My phone buzzed in my other hand, and its screen briefly lit up the small room. Despite the darkness, I’d been staring at my own hand as it slowly but. Just then, they heard the bathroom door open. Derrick pulled up his shorts and Tiffany stood up as Kathryn came out of the bathroom wrapped in a towel."Your turn, she said to Tiffany. Tiffany walked toward the bathroom. Kathryn stopped her, took a finger touched it to Tiffany's cheek and wiped off the drop of come. "You missed this," she said to Tiffany. Kathryn held out her finger, with the drop of come on it, to Tiffany. "Here, you don't want to waist it and stuck her finger into Tiffany's.