takutarou, menkai shazetsu, sirius (company), game cg, source request, 1girl, 3boys, arms behind head, bdsm, blush, bondage, bottomless, bound, breasts, breasts apart, breasts out, brown eyes, brown hair, doctor, embarrassed, functionally nude, hospital, intravenous drip, looking at viewer, lying, medium breasts, multiple boys, navel, needle, nipples, no bra, no panties, nurse, on back, open clothes, open mouth, open shirt, pussy, restrained, shirt, spread legs, standing, strap, strapped down, syringe, teeth, uncensored, upper teeth only