art by doppel, 2boys,  o, anus, ass, blush, brown hair, clothed male nude male, clothed sex, colored skin, docu \(doppel\), doggystyle, fellatio, heart, heart-shaped pupils, long hair, looking at viewer, multiple boys, nipples, nude, open mouth, oral, original, pointy ears, purple hair, purple skin, red eyes, sex, sex from behind, short hair, simple background, speech bubble, symbol-shaped pupils, tail, tongue, tongue out, top-down bottom-up, white background, yaoi