1:1 2018 anna_(sailoranna) anthro anthrofied anus areola blonde_hair breasts chromatophore cunnilingus cutie_mark duo equid equine facesitting female female/female friendship_is_magic fur hair hi_res hooves horse long_hair lying mammal multicolored_hair my_little_pony nipples nude on_back oral princess_celestia_(mlp) puffy_areola pussy rainbow_hair sex simple_background spread_legs spreading straddling vaginal_penetration white_fur yuri