Stepsis And I

I know this might sound bad and all but I was such a super horny kid... I was 12ish i think and I had a 9ish year old stepsister. I remember showing her porn and I got her to act some of it out. Mainly she would lay on her stomach and at first she would wear her panties and Id dry hump her. I always pulled my dick out. I remember how awesome her pantied ass felt on my dick. First time i nutted she thought i had peed on her lol... eventually she agreed to not wear underwear, but she demanded that we messed around in the walk in closet with the lights off. It was pitch black in there. I never penetrated her though. ill never forget feeling her soft bare ass... I would lick it and jack off mainly... i remember the first time i did lick her ass she was like "what are u doing back there" i still dont think she ever knew what i was doing to her.. Her dad and my mom divorced about a year later. Haven't seen her in almost 10 years (other than FB). I've seen pics and shes gorgeous as always...