Rule 34 Dev - blue_hair blush closed_eyes collaboration cutie_mark duo earth_pony equine female female_only feral friendship_is_magic fur grey_fur hair hi_res horse lying mammal multicolored_hair my_little_pony octavia_melody on_back overmare pony pussy pussy_juice sex signature tribadism two_tone_hair vagina vinyl_scratch_(mlp) white_fur yuri ziemniax|2798452528