My bisexual well-endowed friend says girl's pussies feel better than buttholes. He tells me the internal flesh texture of a vagina was specially designed to make dicks happy and is not as smooth as the lining of the anus. Supposedly the best part of the buttholes is the tightness, and according to him, all ass holes don't feel the same way (some feel warmer or "wetter" than others). I won't speak on my experience because I'm a virgin.