Rule 34 Dev - 2014 3d abdominal_bulge animated animated_gif anthro breasts cgi duo equine erection female friendship_is_magic furry futanari gif heart horn horse large_breasts mammal my_little_pony penis princess_cadance princess_celestia princess_luna sex source_filmmaker swedish_text swedishsnus text trixie twilight_sparkle_(mlp) unicorn winged_unicorn wings|550024