horny at 13.

basically what i’m trying to say is, i’m a 13 year old girl. most of my childhood i have been touched and ‘raped’ by my older step brother. i don’t know if i should call it rape because i let him do it. but it’s not good for me. he recently got kicked out for drugs so that problem is over, i still don’t plan on telling my family. but since that, i have been getting horny. i don’t know if this is normal or what i should do. i watch porn but don’t finger myself or anything.