Yeah, fucking while hiiigh is awesome. For me, I can stay harder for longer after a couple of tokes. But I also lose myself into it, so I tend to forget that there is a person attached to the hole, lol.
And I used to have the problem when I was in my late teens where I would invariably pop a boner about 20 minutes after smashing a few pipes. Could have been awkward with me and my toking buddy by ourselves in my basement, but he usually was too far gone to notice, or I would just make a joke of it. Sorta along the lines of:
"Hey dude, check this out."
(Gets up to bone a hot lady on the television)
"Aw shit, man."
(Descends into laughter and chaos)
Man, I wish I was high, now!