FURVERT!

1:1 animal_genitalia animal_humanoid animal_penis ball_growth balls balls_expansion big_balls breath canine_genitalia canine_penis clothed clothing comic cum_blockage cum_buildup desperation digital_media_(artwork)erection expansion fur genital_expansion genital_growth genitalia_disappearing genitals genitals_shrinking gothicguttz grimace growth hair hi_res huge_balls humanoid knot male masturbation not_furry one_page_comic orgasm_denial pain panting penis penis_shrinking pleasure_meter sequence shrinking simple_background size_transformation solo squirming tail teeth tight_balls transformation transformation_sequence unrealistic unusual_anatomy unusual_genitalia vein veiny_balls