I started to get aroused and began to masturbate myself while thinking of them. One hand rubbing my own hot tits and another between my thighs strokin... my rapidly moistening slit, I imagined them in every possible position.I could see them kissing, tongues in each others mouth. I could hear the sighs and gasps. I could see him tracing his hands up and down her body, and then I began to imagine that it was me there with him, clinging to his powerful body. Feeling the rippling of his chest. Oh my God what a beauty she was hiding under her clothes. Her boobs were milky white with light brown areolas of 2 inch diameter and 0.5 inch long nipples. I immediately started sucking her nipples and she started moaning. I sucked both her nipples one by one. I again started kissing her and at the same time I was pumping her boobs. While we were kissing she took her hand to my crotch and started rubbing my dick over my pants. After rubbing my dick for a couple of minutes, she got hot and. . and then it dawned on me!I spat out his cock and pushed myself away screaming, "No!!!!" Oh come on Michele, I'm sure your sister will be happy to have a couple of pictures of her brother. A couple of, shall we say, more candid shots," he chuckled evilly, putting himself away and zipping up his fly."Please, please don't," I begged."Oh no Michele! Don't come around here even pretending that any of this is my fault. I warned you what was going to happen if you didn't cooperate and now your. All they needed was to time her initiation properly and they felt sure that there would be no fuss whatever.But the timing was, nonetheless, important.They decided, finally, to pursue her in a manner that had been successful with numerous other reluctant conquests. A combination of preying on her immaturity and the natural wish of every over-developed teenager to appear older than her years, and sophisticated, and the use of drugs and lewd motion pictures as well. Eventually she would become so.