FURVERT!

all_fours anal_fluids animal_genitalia anus backsack ball_tuft balls bodily_fluids butt canid canine collar corvidtree dripping feral garvark_(corvidtree)genital_fluids genitals grinding hi_res knot knotted_penis leash lying male mammal masturbation messy monochrome musk musky_balls musky_butt musky_penis open_mouth penis pillow pillow_humping precum precum_drip precum_on_balls precum_squirt precum_string presenting presenting_anus presenting_balls presenting_hindquarters raised_tail sheath sketch solo speech_bubble tail tail_leash teasing tongue tuft wet wet_anus