My pussy clenched as my toes curled."Oh, wow! That's so hot," I gasped.A girl's song floated to my ears.I shot up, rolling onto my hands and knees."He...y?" Rex exclaimed in surprise. "What're you doing?"I crawled to the edge of the bluff, my ass shaking at my brother. The song meant Queenie was down there.I peered over the edge. I couldn't make out the words as the girl slowly unbraided her black hair, letting the long curtain fall down to her ass. Rex joined me, groaning in delight as Queenie. I giggled then I placed a hand on his arm, a firm, muscled arm, and said, "David, please, don't worry. If you'd like I can go with you. Not that I'm an expert, but at least four eyes are better than two. And I know the right neighbors where to live." Are you sure? You won't mind? You are my boss, are you sure it's appropriate?" he asked."Let's make it clear, I'm responsible for this department, but I don't want to make anybody feel uncomfortable because I’m the manager. I’m trying to be. Huh?" He starts to pull me down, the massive dick head straining to get inside my tight virgin hole. "Mark, no!" And the head pops in. Mark let's out a massive groan."I'm sorry, I need this Drew. Just relax." Take it out, Mark! Ugh, its big, take it out." Just a minute, I just need to feel it in there. We're not fucking or anything, ugh, ooh god that feels good. You little slut."My knees holding me up start to buckle and slowly his dick is sliding inside me as I slide down it."Oh god no! OW,. She was two years older than me and always underestimated me, so I usually won the bets. But not always. Still, Sis had a tendency to overbet sometimes when she shouldn't.And so it was that one day she bet me that I couldn't climb to the very top of a very tall tree that was growing outside a drugstore we'd just come out of. "You'll chicken out before you get that high," she insisted."No, I won't," I insisted back."No way you can do it," she said, smugly, "you'd never make it, not in a million.