Rule 34 Dev - anthro balls blue_seam_briefs briefs chalk chalkboard classroom clothed clothing colored_seam_underwear erection foreskin fur genitals grey_body grey_fur humanoid_genitalia humanoid_penis male partially_clothed penis presenting presenting_penis retracted_foreskin school sex_education small_but_hung solo standing text underwear underwear_down white_briefs white_clothing white_underwear young young_anthro krimsomskaizo canid canine canis mammal wolf hi_res|15650484955