Rule 34 Dev - ass_up cutie_mark duo earth_pony equid equine female feral hasbro heart heart_(marking) hi_res horse human human_on_feral interspecies male male/female mammal mlp_g1 my_little_pony omnii34 penetration pony pre-g4 size_difference smaller_female smaller_penetrated sweetheart_(mlp) zoophilia|8293227056