3:4 anthro bdsm bit_gag bondage bound bridle candle chain chained dungeon equid female forced friendship_is_magic gag genital_torture hasbro hi_res horn horn_ring mammal my_little_pony nipple_clamp penetration piledriver_position quakehoof rape sex solo torture twilight_sparkle_(mlp) vaginal vaginal_penetration wax_torture winged_unicorn wings