FURVERT!

5:4 anthro anus balls biped butt darkened_balls darkened_genitalia darkened_penis erection eyewear feet foreskin genitals glasses grey_background holding_butt humanoid_genitalia humanoid_penis iggy_koopa koopa koopaling legs_up long_foreskin looking_at_viewer lying male mario_bros nintendo on_back penis perineum presenting presenting_anus scalie seyrmo shell-less signature simple_background solo source_request spread_anus spread_butt spreading tusks unretracted_foreskin