Rule 34 Dev - 2021 anthro big_bulge bodily_fluids bottomwear bulge canid canine canis erection erection_under_clothing exercise flexible furry genital_outline highres looking_at_viewer makowolf1 male mammal muscular muscular_anthro muscular_male pants pecs penis_outline shirt simple_background solo stretching sweat tank_top testicles_outline topwear white_background wolf workout wristband|5515233104