Rule 34 Dev - animal_genitalia arched_back balls closed_eyes cum duo glans humanoid_penis knot licking looking_pleasured lying male mammal masturbation mustelid nude on_back open_mouth oral partially_retracted_foreskin penile_masturbation penis penis_lick sex sheath slim spread_legs spreading tongue tongue_out uncut unknown_species weasel weaselgrease yaoi|2473557264