2018 age_difference anal anal_penetration anthro anthro_on_anthro black_nose brown_fur canine cheek_tuft classroom claws clothing condom countershading cub cum cum_in_mouth cum_inside cumshot detailed_background ejaculation feline filled_condom from_behind_position fur geppei5959 grin group hi_res inside kemono larger_male lighting lying male male/male mammal masturbation necktie nipples older_male on_front on_table one_eye_closed open_mouth orgasm pawpads peeping penetration school sex shirt size_difference smaller_male smile spots spotted_fur table teeth tongue tongue_out tuft young younger_male