Bro-in-law Jack Off
My step-bro was getting married on his 18th birthday. Two days and the night before he was to get married, he was as nervous as a cat. I was 14 at the time, and his 17-year-old bud, Steve and me, decided to jack him off to calm him down when he got the willies. (Bro didn't want to drink.)
We jacked him off about 7 times to calm him down and it worked really well. Steve and I would jack off each other privately during that time and we eventually became regular jack-off buddies.
This was a time to remember and I jacked off countless times thinking about it and so did Steve.