Hello there I was 25F when this happened.
I used to babysit for a couple who I knew on the street they had a daughter at age 8 and they both used to enjoy a night out and me needing money at the time used to babysit.
I had done this for several months to top up my part time wage till one evening they both came back the husband who was 42 and the wife who was 38 who was tipsy but the hubby was sober.
After helping the wife get changed and put her to bed the hubby asked if I needed a lift back i said no as I didn't want him leaving the house I had a few times slept on the sofa with no incident.
Well half an hour later I was bent over trying to grab something to drink and I felt a big firm hand on my backside in which all I had was thin leggings and a t shirt and bra on.
I knew right away it was the hubby groping my ass. I quickly jumped up and faced him I was surprised and he looked sorry but I could tell he wanted more as I stood there surprised at him quickly lifting my t shirt and then lifting my bra exposing my ample D cup breasts and giving them a hard fondle.
I muttered about the wife but he said it's ok and led me to the large corner sofa they had in which he took my leggings and pink thong off which was risky and he took out his hard cock and then I made the move to start blowing him.
I always enjoyed hearing a man moan when I'm blowing him and he was quickly moaning as I sucked him which I did for several minutes which I then stopped climbed on top of him and then straddled him with his hands on my tits fondling them.
After a decent few minutes of riding his cock he groaned out and I felt his warm seed shoot into my womb but I sat there till he went soft and then felt his cock slip out.
We did this a couple of times till I started to feel guilty over me fucking her husband and I also stopped babysitting. Just another slutty chapter in my life