Rule 34 Dev - 16:9 2013 animal_genitalia animal_penis anthro anthrofied balls breasts cloud cutie_mark duo equine equine_penis erection eyewear female friendship_is_magic furry glasses horse horsecock male mammal my_little_pony nipples nude open_mouth outside penis ponchuzn pony sex sky smile straight_hair stripes thigh_sex tongue unknown_character zebra zecora_(mlp)|2963704624