Rule 34 Dev - 2024 abs anthro back_tuft biceps blue_briefs blue_clothing blue_eyes blue_underwear blush bodily_fluids body_hair bondage bound briefs briefs_only brown_eyes bulge canid canine canis chastity_cage chastity_device chest_hair chest_tuft clothed clothing collar domestic_dog dominant duo eye_contact gag gagged genital_fluids genitals hands_tied hands_tied_behind_back hi_res looking_at_another lying male male/male mammal masculine_male mastiff metal_chastity_cage molosser muscular navel neck_tuft nude on_back pecs peeing penis reclining restraints rhinoceros rope rope_bondage rope_harness rottweiler simple_background size_difference skylardoodles straddling submissive topless tuft underwear underwear_only urine urine_pool watersports wetting wetting_bottomwear|14602150160