First Time

A couple of weeks ago I went over to my mates house 30 miles away, he's divorced and so am I. We went out for a drink and something to eat then back to his, I was staying the night. He showed me to the bedroom where I was sleeping and went to his room.

I started getting undressed and when I pulled my boxers down he was standing in the doorway looking at me naked. I'm not shy and I was'nt bothered he said I notice you shave your ball sack, I said yeah, they were going grey anyway. He said so do I. I was laying on the bed, by now naked before going to sleep and then he came and sat down getting a closer look.

I'm not a big man about, 6' erect and I was getting erect. All of a sudden he started touching my balls massaging them and I got the best hard on I had in ages, precum was leaking out and he started to wank me off nice and slow.

It did'nt take long for me to cum but it was awesome, we never said anything about it the next day, he's coming to my house in three weeks. What should I do, return the favour or not? It's something I've never done before.