[rhl]

I would suck him off if he was willing to let me. Nails in front of a guy doesn't do anything for me.

If it is a girl and I'm told that I had to stand naked in front of the guy or suck him off. I'm sure she would have talked it over with her boyfriend first.
I will assume she is also watching. So do I strip naked and let them see or do I suck him off. Tough decision, if she is going to be by me to force my head into taking his dick. I think I will choose this humiliation.