Same here back in the day - tied over the saw horse naked - nakedness didn't bother me nor did getting a hard on!! Got some serious beatings but I needed it.
My stepfather would secure me over a wooden work bench similar to this for my punishment because he didn’t like me thrashing around. In retrospect it was for the best it i wouldn’t have been able to tolerate it. I wasn’t naked only my pants and underwear were pulled down. I remember standing up with an involuntary hard on after and was very self conscious.
As a sex slave, I've been bent over a sawhorse many times for whippings and punishment fuckings. As well as the entertainment for my Master's parties..