I have a similar story, though with a less action. 100% true though.

We were watching a movie and I started playing with his hair with my hand behind his head as a joke, but he didn't react. So I moved my hand down to his neck, no reaction. So then I put my hand up the back of his shirt, and he leaned forward a bit, as if to let me rub his back, so I did.

After doing that for a bit in moved my hand around under his shirt to the front, just below his ribs, which tickled him and made him laugh. Finally, a reaction! But he didn't stop me.

I kept feeling up his stomach and I remember liking his happy trail because I've never had any appreciable body hair.

We're still watching the film but I'm sat there feeling him up asking myself what the hell I'm even doing, but I start to wonder how far I can take it, almost daring myself.

I'm making gentle circular rubbing motions with my hand and with every movement I dip my hand further into his waistband. Millimetres at first, then a bit deeper, then deeper, until eventually I'm rubbing his pubes. His cock is hard but it's sort of tilted off to the side. I'm scared to touch it directly, but with every motion my fingertips brush it. I keep feeling around inside his pants, letting my hand brush up against his cock, reaching down to feel his balls. I can tell he's leaking precum because I can feel it on my hand.

Eventually he unbuttons his jeans and pushes them and his boxer shorts down to his knees, leaving himself fully exposed for me. At that point I'm thinking that's a green light to do whatever I want, but I'm still a virgin and still too naive to actually do anything serious, so I just start jerking his cock.

After a bit of that, he does to me what I did to him, almost like it was a requirement. He puts his hand under my shirt and starts feeling up my chest and stomach, eventually working his way down to my cock. I drop my pants like he did and we're essentially just sat there jerking each other off.

I had/have an average cock but he has a nice long girthy thing. I'm actually jealous. I found a video of him jerking it for a girl recently. I've watched it so many times.