I played the heck out of NWN when I was a teenager!
…by which I mean I was excited by the character options, so I ended up restarting it over and over again. I’ve done the Waterdhavian Creatures quest so many times I burnt out. :P
I should go back and actually beat the game.
My theory is that having a horny bard in the party is pretty common, but it depends on how frequently and how (ahem) enthusiastically those scenes get roleplayed. :P