2016 abdominal_bulge animal_genitalia animal_penis animated balls bestiality big_breasts breasts clothing cum cum_inside cutie_mark duo equine equine_penis erection eye_roll female female_on_feral feral friendship_is_magic hair horse human human_on_feral interspecies mammal multicolored_hair my_little_pony nipples open_mouth penetration penis rainbow_dash_(mlp) sex soarin_(mlp) squirrelpony wonderbolts_(mlp)