FURVERT!

abs anthro armpit_hair ball_tuft balls big_balls big_muscles big_penis blush bodily_fluids body_hair bottomwear bottomwear_down canid canine canis castbound chest_tuft clothed clothing countershading crotch_tuft domestic_dog dripping erection genital_fluids genitals gym hi_res huge_balls huge_penis humanoid_genitalia humanoid_penis inside looking_at_viewer male mammal muscular muscular_anthro muscular_male muscular_thighs musk nipples partially_clothed pecs penis precum precum_drip russell_(castbound)shorts shorts_down solo speech_bubble sweat topless tuft vein veiny_penis