Rule 34 Dev - 1boy 1girl age_difference backpack bag bald ball_and_chain ball_and_chain_restraint barefoot bdsm blue_eyes blush bondage border bound bound_ankles braid breasts buttons cameltoe collar computer copyright_request feet female flat_chest glasses glowing hair_ornament hands_on_own_chest holding indoors kneeling labcoat legs loli long_hair male mask monitor navel necktie nipples opaque_glasses open_eyes open_labcoat orange_hair panties panties_only pants parted_lips piko_piko_hammer pipe randoseru ruler sameda_koban scrunchie side_braid sitting soles spike_ball spiked_collar spikes spread_legs surgical_mask sweatdrop tied_hair toes topless twin_braids underwear underwear_only waistcoat wariza wing_collar|25861293