Her body had a slight hourglass look to it with a slight, but cute, chub around her stomach. She looked as if she was either 16 or 17. After studying ...er, I realized she wasn’t wearing any upper clothing and only had shorts on. Her breasts were small, I’d say A cups. She had freckles on the top of her breasts. Her areolas were perfect for her breasts, as well as her nipples.Krissy was shorter than Sarah. Her facial structure looked the same as Sarah’s, but she didn’t have any freckles or beauty. I changed intoankle socks and my gym shoes, then mom told me to go outside, dinnerwould be in an hour or so. I had no choice but to go out, wondering howI could have been so stupid to get caught again. Mom had warned the timebefore, that if she caught me in her clothes again, I would find myselfin a situation that I might not like, and well, she caught me again.That's how I ended up like this, and with summer break just a few daysold, I had been looking forward to having fun playing baseball,. She pulled her shirt up to just under her tits, I could see she had no bra on! She got a sexy smile and asked again if I would jack off to her. I suddenly realized her game, I thought, so I smiled back and said ‘I don’t think so’. My sister then pulled her shirt half way up her magnificent tits. Her areolas are large with nice big nipples. She said “how about now, dear brother?” I responded “I am not sure dear sister”. She looked at my cock, which was now rock hard. "Are you sure Eric,. "I asked Gregg, "Do you want to pick one or shall I?"He smiled and said, "Go ahead. Let's see how brave you feel tonight."I took that to be a dare. So I picked out the tiniest, sheerest suit of the bunch and put it on. It's almost identical to the one I wore last weekend. My nipples and my slit are nominally covered by the tiny patches of sheer material. But as soon as it gets wet I'll be as good as naked.Kat looked at me and shook her head. She said, "I'm sorry. I don't think I can go to a.