need help about teen-life sex?

[Zack]

im 14 and ive had sex for about thirty times in my life. i dont knw why i just like it so bad. ive had almost exactly the same clazmates till kindergarten. i started having sex when i was 8 four times with my clazmates. now i still continue it. all of the girls in my clazroom except one chubby girl became a nonvirgin all becuz of me. i feel sort of guilty. but they seem to enjoy it quite a lot and sometimes they're the one who visit me home to make-love. i even had group sex with half of them taking everything there is in my body. it felt so good. but is it bad? i dont use a condom or anything. i do(or the girls rather)do abstinence. none of them got pregnant. i just wanna ask if its good or bad, dont have to suspend me for months. and yes, im pretty gorgeus