Rule 34 Dev - 1boy 1girl age_difference ass bad_source bdsm collar commission fat fat_man female flat_chest hachikuji_mayoi hair_grab hairband happy_sex heart hetero highres loli looking_at_viewer looking_to_the_side macadam male monogatari_(series) nipples nude o-ring open_mouth patreon_username saliva sex slave smile tears twintails watermark|1929503137