During the 60's I had to go and stay with my Aunty while I was still at school because my parents had to move away.I was 16 and my female cousin also lived there. (she was 15)
I had a girlfriend but we were still at the minor touching stage as you were in those days.I had felt her fanny and breasts but only in the cinema and she had masturbated me once to orgasm but I had shot all over her dress so she wasn't keen to do that. After a session of heavy petting I had to take her home by 10:30. Having had a hardon for about 3 hours I had what we used to call blueballs and thet really ached and this one night when I got home I desperately had to have a wank. I stripped off naked and stood in front of the dressing table mirror and started to stroke my now very hard cock whilst watching myself in the mirror when my cousin walked in on me.I didnt see her at first and I just kept stroking when I saw her reflection in the mirror and it frightened me to death. I said to her what the hell are you doing and she said I should be asking you that.
With that she said could she watch and I thought what the hell the damage has been done now.
She said she knew I jerked off because she listened at the door sometimes and could hear me. I got quite embarressed over this but she said she listened and played with herself whilst she listened.
On that I said why dont you do that now, and she opened her dressing gown to reveal she was wearing nothing underneath. All i could look at was her very hairy pussy and my cock became hard again.
I started to stroke it and she started to play with herself when we moved closer together and I said in a very dry voice why dont you stroke it and she said ok and started to rub my cut cock up and down.
I reached and started to finger her and she let out little moaning sounds which was too much for me and I shot my load everywhere. She just smiled gragged my hand and pressed it into her fanny.
I continued to finger her now soaking pussy when she suddenly tightened her legs together let out a load moan and collapsed on me.
That was the most exciting and erotic thing that had happened to me up till then.She just said thanks maybe we'll due this again and left.
I was mesmerised, stood there shaking couldnt believe my luck. I was so worked up I immediately wanked again to orgasm and had one of the best sleeps of my life.
This continued with my cousin but thats another story for another day.