Tatoo Gift_英语女性笑话

it's a couples anniversary and the woman decides to do something nice for her husband so she goes to a tattoo parlour and says "can i have the initials of my husband tattooed onto my ass please? i would like 'b' on one cheek and 'b' on another cheek."

after the tattoo is finished she goes home pulls her trousers down and bends over infront of her husband and her husband says "who's bob?!."