vocaloid, hatsune miku, yowane haku, niwakaame (amayadori), 2girls, ahoge, all fours, aqua hair, belt, blush, breasts, christmas outfit, detached sleeves, doggystyle, earmuffs, futanari, futa on female, hat, long hair, multiple girls, nakadashi, necktie, nipples, pillow grab, pink hair, ponytail, red eyes, santa costume, santa hat, semen, sex, simple background, taken from behind, tied hair, triangle mouth, twintails, very long hair, white background, commentary request