2boys, abs, anal, anal object insertion, bara, bdsm, blush, bondage, book, bottomless, bound, brown hair, censored, closed eyes, clothed on nude, clothes lift, desk, flaccid, forced, grimace, lying, male focus, male penetrated, marker, mosaic censoring, multiple boys, muscular, nipples, object insertion, on back, on desk, penis, rape, school, sex, shirt lift, socks, spread legs, study, sweat, yaoi