FURVERT!

2_penises animal_genitalia animal_penis anthro ball_inflation balls balls_expansion big_balls canid canine_genitalia canine_penis chair container creature_inside diphallism expansion furniture genital_expansion genitals glory_hole hi_res jar knot knotted_glory_hole male mammal mikey6193 mikey_(mikey6193)multi_genitalia multi_penis parasite penetration penis slime solo stuck stuck_genitals stuck_knot stuck_penis tentacles through_wall unknown_species urethra urethral urethral_bulge urethral_penetration vein veiny_penis vertical_diphallism