Rule 34 Dev - anthro anus back_muscles backsack balls barazoku barbell big_butt big_muscles blue_background bulge butt clothing collar crouching ear_piercing ear_ring exercise fingerless_gloves footwear fur genitals gloves grey_body grey_fur handwear jockstrap looking_at_viewer looking_back looking_back_at_viewer male mostly_nude muscular muscular_anthro muscular_male perineum piercing rear_view ring_piercing shoes simple_background socks solo squats tattoo toeless_footwear underwear weightlifting workout tylerstark droxious canid canine canis domestic_dog mammal pit_bull 2021 absurd_res hi_res|12055004465