First of all, tell them that this is 100% real. It was several years ago and both my girlfriend of that time and I were virgins. I hope you enjoy reading.
I was very young. I had a girlfriend of my age. We had almost 1 year together and we were both virgins. She always had her house alone leaving school. We were going to kiss passionately and she let me touch her nice ass. She was thin, small, pretty face, Latina with brown skin, had small but nice tits, and her cute, small and round ass. She wore a skirt (school uniform, schoolgirl literally). I loved going to her house and kissing, touching her nice ass and lying down on her bed and pretending to penetrate her with both clothes on.
She always wore lycra shorts (like playing volleyball) under her skirt. She did not play volleyball, she used them to avoid accidents. She at home let me put my hand under her skirt and touch her nice ass, or lift her skirt and admire her cute round ass for a few seconds.