I did this in high school, with a pal.
It always began with watching straight porn.
We would begin shyly, blocking view with pillows....
but as each of us would near climax, the pillows would be thrown aside.

We did this 7 or 8 times over those years,
and we continued the pretense of the pillows and the
"we wont ever do *that* again" type stuff afterward, every time
we did it.

Interestingly, we never touched eachother...somehow that would
have been over the line.
We were both in denial about being gay at that time.
In fact, this was the only real guy/guy experience i had in high school.