Having read "The Starship Titanic" and seen that last episode of Doctor Who, I got to wondering, would a normal person have sex with an alien if the alien were drop dead gergeous and quite willing. Now for details, you know very little about the species themselves nor does the alien in question know much about you so for all you know it could get you pregnant (even if your a guy) or turn you into one of them, you dont know!
oh, and of course, another thing you know is that is physically possible
oh, and of course, another thing you know is that is physically possible