FURVERT!

anal anal_masturbation animal_genitalia animal_penis anthro big_breasts breasts butt crossgender crouching dildo equid equine equine_genitalia equine_penis erection feathered_wings feathers friendship_is_magic ftg_crossgender fti_crossgender genitals greyscale gynomorph hair hasbro hi_res hooves horn horse intersex knot knotted_dildo long_hair mammal masturbation monochrome my_little_pony mythological_creature mythological_equine mythology penis pony princess_celestia_(mlp)sex_toy smile solo winged_unicorn wings xerun