2018 abstract_background ahegao anal anal_penetration animal_humanoid anthro athletic balls bdsm being_watched blue_stripes blush bondage bonded bound brown_hair butt byakko_no_kogenta carrying cat cat_ears_(disambiguation) cat_humanoid chained cum cum_in_ass cum_inside dipstick_ears dipstick_tail domination drooling duo feline fur grey_background hair hand_on_stomach hand_on_thigh hands_free_cum human human_on_anthro humanoid humanoid_penis interspecies japanese_text kemono kogenta light_skin looking_pleasured male male/male mammal moan multicolored_fur multicolored_tail naughty_face nipples nude on_top onmyou_taisenki open_mouth orgasm penetration penis saliva sex sibling simple_background size_difference slim spreading stand_and_carry_position standing striped_fur stripes tachibana_riku tan_skin tears teeth text tiger tongue tongue_out twins white_fur young コゲリク