Rule 34 Dev - 2013 animal_genitalia anthro ass balls bear biceps big_muscles big_penis black_penis brown_fur bruin canine chains closed_eyes deepthroat domination duo erection face_mounting fellatio forced forced_oral fur furry green_eyes grin gym humanoid_penis indoors isaac_(zerostar) jock jockstrap leaking looking_at_viewer lying male male_domination mammal muscular muscular_male on_back oral oral_penetration penetration penis polar_bear precum presenting rrowdybeast sex sheath smile standing submissive throat_swabbing topless underwear vein white_fur wolf yaoi|2438910680