Saying I'm merely 'good' in bed was being modest. What, you think these girls keep coming back for the sparkling personality? I don't bring up things that I'm bad at, but I know what I'm good at.
Gender and species don't matter. If the person is interesting and willing, that's about all it takes. I have a few lines I draw. I don't mess with significant others of my friends, no one too young, and I prefer not breaking up relationships. That's just too complicated.