FURVERT!

3:4 alternate_universe anthro asriel_dreemurr balls bed comic cutaway dracozhilla erection expression_cutaway femboy first_person_view foreskin fur furniture genitals genitals_shrinking hi_res horn humanoid_genitalia humanoid_penis male male_pov penis penis_shrinking potion skinny solo surprised transformation underswap undertale undertale_(series)unretracted_foreskin white_body white_fur