Mommy Sex

I was 15 when this happened, my mom who had seperated from my dad, would have men come round for sex daily. I'd go to bed and lie there listening to her moan, louder and louder until she came, strangely I got turned on by this, and one night I got up, walked to her door, and peeped through the crack. I was surprised to see her on all fours, being f**ked hard by a bloke I hadn't seen before, I started to masterbate, watching her get f**ked so hard and fast was a great thrill, I wanked hard and fast too, just as I was about to cum my mom turned her head around and saw me wanking, she winked at me as I came all on the landing floor, she smiled as I blew my load, I ran to my room got into bed and went to sleep.