Rule 34 Dev - 1boy 4:5 abs animal_genitalia animal_penis anthro balls big_balls big_knot big_penis blue_underwear bodily_fluids canid canine canine_penis canis clothing cum ear_piercing erection genital_fluids genitals green_eyes hi_res katarhein knot male male_only mammal muscular muscular_male partially_clothed pecs penis piercing precum pubes solo thundergrey tongue tongue_out topless underwear vein veiny_penis wolf|5066034032