Uuummm I never got whipped growing up but when I was 19 I met a very handsome DADDY he turned me into a pain slut and a cock whore he would strip me naked and whip me with a belt, a riding crop, a flogger it was so painful and so exciting especially when he did it in front of other men and when he was done punishing me I would have red welts all over my body and he would give me to them so they could gangbang me uuuummmm
Got ours over saw horse (bolted to the floor) in the basement - yeah, we'd cum during it!! One thing we did was to jerk off before punishment to avoid ejaculating during - that drained us of adrenaline etc and made the pain more intense - but usually we'd finish up cumming anyway!! Bros and I were tough guys who could take a lot of pain!! Wasn't just an ejaculation - sometimes had a massive orgasm during a beating!!!!!!!
Never got it on my back - my naked butt was bad enough!!! Also had to count every stroke out loud - and he'd ask the question "Is this hard enough for you" and the ONLY acceptable answer was "No sir - harder, please"