I was ready this time. When Mark walked into the toilet, I grabbed a tree branch nearby and tiptoed quickly to the entrance. I peeked inside to see Ma...k slipping an access card of some sort into holes in the wall. A concrete door opened to reveal a staircase leading down. Mark walked down the stairs quickly. He walked so quickly it looked like he was late for something. When he left he allowed the door behind him to slowly swing shut. I ran inside the toilet and managed to reach the door before. Allison was still bent over, on all fours. Gently, Gabby kissed each cheek of Allison’s ass, as if her kisses could magically cure her. Making a short show of that, Gabby wasted no time getting beneath her, and setting the other girls pussy over her mouth. Allison was soon moaning in pleasure as my sister’s talented tongue danced over her clit and pushed into her pussy. Although my sister was not an aggressor, it was clear that she played that role when she and Allison got together. Gabby’s. I held her close, put my hand on her generous boob and kissed her wholeheartedly. She answered my yearning kiss with a kiss of her own, her hand magnetically attracted to my crotch, freeing my now totally inflated member, which proudly stood like an iron bar. I pushed her to her knees. She understood and fed my passion into her red mouth, sucking, licking, kissing and nibbling, while I luxuriously but slowly fucked her mouth using very slow movements. But I wanted more than just a blowjob, so. I kept telling her what a good girl she was. Then she told me she had never cum as many times as she has and she thinks she wants to be my sex slave... I told her that I would have to see how she handles the next 2 hours. She slid her tongue into my ass as she spread the spit into my sphincter. I was almost hard again when the door opened and two of my boys walked in, holding their cock hard jeans as they entered. One unzipped and positioned behind her. Before she knew what was going on, he was.