Rule 34 Dev - abs anthro armpit_hair biceps body_hair book claws digitigrade erection fangs fur hair happy_trail humanoid_penis looking_at_viewer lying mablevi_eto male male_only mammal markings marten masturbation mokko muscular muscular_male mustela mustelid musteline nipples no_swift nude pecs penile_masturbation penis solo teeth|3503468312