i think it just combines everything that turns me on. big tits, muscles, huge cocks. i don't really ever find men attractive, but like a lot of other people on this board, i just think cocks are sexier than vaginas. i think i accidentally found some shemale/futanari about a decade ago, and it just hit home. for porn, nothing gets me going faster. in real life, i have a loving, fulfilling relationship with a great woman - and i don't have trouble getting hard or anything. but muscled futa shit will ALWAYS be my ultimate fantasy.