I was an Army brat until 18. I lived with my older brother and his wife on base.
I got all the cock in the latrines that I wanted. They had holes of all sizes in the stall partitions to handle even the biggest cocks. I was able to get cock everyday if I wanted.
One day I kept count and I orgasmed 9 guys! That's too many. Anyhow, they took care of me real good. That's what I jack off to now even though I am married with 2 children.