Rule 34 Dev - 2018 5_fingers alicorn anal anal_sex animated anthro anus ass ball_gag barefoot blush body_writing bondage bound bound_together breasts brick brick_wall buttplug clitoris cosmic_hair cutie_mark cutie_mark_buttplug duo english_text equine eyebrows eyelashes feathered_wings feathers female friendship_is_magic fucking_machine gag gagged hair hi_res horn horn_ring incest long_hair looking_at_viewer lying machine makeup mammal mascara multicolored_hair my_little_pony nude on_back on_top penetration princess_celestia_(mlp) princess_luna_(mlp) purple_eyes pussy pussy_juice rainbow_hair rope saliva sex sex_machine sex_toy shared_gag sibling signature sisters sparkles submissive sweat teal_eyes text the_dark_mangaka tied_together vaginal_penetration white_feathers wings yuri|6149791456