Rule 34 Dev - 2boys anal anthro balls balros big_balls big_tail bristle bulge canine collie diphallia diphallism duo echoen frontal_taur_balls frontal_taur_genitals frontal_taur_penis huge_balls hyper hyper_balls hyper_penis insomnicon knot male male_only mammal monochrome multi_balls multi_genitalia multi_penis penis pentaphallia rodent simple_background squirrel squirrel_taur taur triphallia wolfblade yaoi|2387739776