I'm not entirely certain where I would fall- I've RP'd various scenarios with my girlfriend that have ranged from incestuous (D/D, S/M, even B/S) to actual monster/animal scenarios. (RP'd, not actual bestiality.)
Honestly, I would say that I probably would - not out of some personal attraction, but just general open sexuality. Would I enjoy it? I can honestly say nope, there's no real attachment to that notion on my end.
For me, the bully/mom thing again ties to my sexuality - I am generally a heavy/aggro dom in bed, although we do like to switch it up. My GF even RP's the idea of fucking other men in front me with her toys, while I also go into detain to describe making her watch as women she knows fuck me as we have sex. Overall, I say I'm just a strange case all around.