2017 alicorn anthro areola big_breasts breasts changeling cunnilingus dialogue dickgirl english_text equine erect_nipples erection fan_character female friendship_is_magic futa_on_female horn intersex intersex/female mammal my_little_pony nipples nude oral pegasus penis princess_luna_(mlp) pussy queen_chrysalis_(mlp) sex text vaginal_penetration wings yuri zwitterkitsune