"How does a sexually oriented magic-using character cast spells in combat? Does he/she have to masturbate, and would it provoke an attack of opportunity?"
I can just imagine the rules argument around the gaming table over the "does hostile masturbation provoke an attack of opportunity?" bit. I think I could make a case for both sides, although it seems obvious to me that the answer is "yes." Any AD&D geek out there want to engage in a little absurd performance art and debate the point?