FURVERT!

2_penises 2_sheaths animal_genitalia animal_penis anthro balls base_one_layout basic_sequence becoming_erect big_balls big_penis digitigrade diphallism equine_genitalia equine_penis genitals glans horizontal_diphallism huge_balls huge_penis humanoid_genitalia humanoid_penis hybrid_genitalia hybrid_penis hyper hyper_genitalia hyper_penis jt_(limitedvision)limitedvision linear_sequence long_penis male medial_ring multi_genitalia multi_penis multi_sheath multifur one_row_layout penis sequence sheath simple_background solo three_frame_image three_frame_sequence unsheathing