The bar was dark and she thought it would be sexy and fun, and could do it without showing too much. I was not there so she called me to discuss it. ... begged her not to do it but she said I was just jealous and should be more proud of her. With much reluctance, and some favors promised, I finally consented.Afterwards I heard the details. Apparently, modeling the first outfit was going as expected, but when one of her co-workers offered $100 to the charity if she modeled the other outfits. Greedily, she pulled his prick in her own direction, forcing Les to follow. In seconds, he found himself on his knees behind Roberta. His big ball sack was hanging over his little sister's forehead.Amy was in some kind of hedonist's heaven. She alternated her tongue work between Roberta's flowing cunt and the underside of her brother's big prick. Her hand moved lightly up and down over the length of his oversized shaft. Soon Les' hips were jerking and shaking as he felt the juices rising inside. Her non-occupied hand scoops up the orphaned briefs, pushes my head against the wall, and crams them between my teeth, grit and all. I try to spit it out, but the tightly packed mass immobilizes my tongue. My pussy expels a syrupy surge onto the bench."Shhh." She leans in close enough for her whisper to stroke me, feather-light. I bite into the wad, tasting kelp and Coppertone, as soon as I feel the slippery tickle resume - and imagine in glistening detail what this scene would do to the cocks. The place was pretty packed but we managed to find two seats at the bar that were right next to eachother. "Wow, we lucked out. I said as we sat down. I thought we might be stuck standing all night." "Look at all the gorgeous woman here. Good thing your single again, were definitely not going home alone tonight." I immediately began to think about Allie and how beautiful she was. She always wore the sexiest clothes and lingerie whenever we were going to make love. Well on those nights it.