Rule 34 Dev - abs animal_genitalia animal_penis anthro ass balls canid canine canine_genitalia canine_penis canis collar domestic_dog genitals hi_res john_silver knot magayser male mammal model_sheet muscular muscular_anthro muscular_male nipples okdrsutsu pecs penis pit_bull rear_view spiked_collar spikes tail vein veiny_penis|8315699464