FURVERT!

anthro anus backsack balls bound butt canid canine canis chastity_cage chastity_device digital_media_(artwork)domestic_dog genitals hands_behind_back hi_res male mammal nude penis perineum presenting presenting_anus presenting_hindquarters rear_view restrained solo spread_butt spreading submissive submissive_male wearing_chastity_cage wearing_chastity_device zeiro