Okay so here's my problem... I'm 17 and nearly all my friends have done something sexually besides me. I don't know if I just don't like sexual situations or if I am just too insecure about my body. I'm about 5'4 and 133 lbs and I'm not fat, I know that I'm not fat, but I feel chubby ... My friends are completely diverse in weight so it's not that I'm comparing myself to that but they just seem so comfortable having sex and giving blow jobs to their SO's .... Anyways, does anyone have an idea as to why I'm so hesitant on doing anything sexual at all?