In a mate's bedroom when I was 19 on a few occasions. He lived across the road from me with his mum & 2 brothers. Me & my mate were both 19, he shared a bedroom with his 18 year old brother. The first time we were hanging out with them I pretended to use the bathroom & sneaked into their bedroom. I knew my mate had a couple of porn mags under his bed. I started flicking through the hustler mag I found & being a horny 19 year old I was already pretty hard just sneaking into my mate's bedroom, I unbuttoned & unzipped my jeans & started rubbing my cock over my briefs. I got to the centrefold & it was a hot stud with long hair fucking a hot blonde woman, it was hot. My cock was real hard, I started rubbing it quicker, it felt so good. I felt myself starting to cum, it felt amazing, my cum started oozing through my briefs as I heard my mate coming out of the living room into the hallway, fortunately he went into the kitchen. I quickly buttoned & zipped up my jeans. I've had a wank thinking about that over the years, lot's of good fun.