FURVERT!

1:1 anatomy anus backsack balls bodily_fluids butt cum cumshot diagram disembodied_penis doxy educational ejaculation english_text erection faceless_character faceless_male female foreskin genital_fluids genitals group hi_res how-to human humanoid_genitalia humanoid_penis internal male mammal not_furry orgasm penis reference_guide text the_more_you_know vein veiny_penis