I don’t know how to be a model,” I answered.“Oh, don’t worry about that, I’ll show you how to pose. It is not hard… but it’s tiring. May...e you’d be more inspired if I said you’d make a cool $1,000 when I deliver the finished work.”“ Wow, you get that much for a painting?” I blurted out.“Oh no,” she laughed. “I make much more. The thousand would be your share of the proceeds. So, have I sparked your interest?”“Sure have. When would you want to do this?” I answered, thinking the money would be. . ." I guess I can see what you are doing. Were you jerking off watching me?" No, I was . . . ah . . . I was . . . well, I guess . . ." I was still incoherent and embarrassed, and I started to tuck my prick back into my swim suit."Hold it right there! Leave your weenie out until we settle this!" I don't think Sis knew what she wanted to do right then, but just needed a few moments to think things through. "But grab that towel and wipe up your mess!"I grabbed a towel, wiped up the floor and the. After deeming it clean enough she let go of me and said, "Come on. You better get cleaned up. Mom's probably almost done packing for Aunt Karen's." Her large tits jiggled invitingly through her blue halter as she jumped up from her knees and stepped out of my room and into the hall.I pulled my pants up, buttoned them, and buckled my belt. My eyes followed my sister's ass under her black miniskirt the whole time, until she disappeared.Maybe I should back up and explain a little. My name is. Brian looked at it and winked at both of us. Instead of his van, we had him rent a long black limo and stocked it with champagne and weed. As we drove away, Carol and I lit up a joint. Weed in the morning always makes us horny. Our first stop was Dunn's River Falls. Thousands of tourists visit it every year. The touristy thing to do is climb the falls. On each side of the falls there are rough stone pathways. People go up in human daisy chains by holding the hand of the person in front of you.