He surprised Conan on Wednesday with the news that his wife had suggested the X-rated location for her inked name. Photo / Getty Images
He admitted cheating on his third wife with now fourth wife, Kayte and Kelsey Grammer revealed she's made sure he won't be playing away from her.
The 63-year-old Frasier star told Conan O'Brien that his wife's name is tattooed on his 'pubic region', The Daily Mail reports.
The actor explained that 38-year-old Kayte - who married the star in 2011 - sees it as a way of staking claim to his wedding tackle permanently.
"It's an ownership thing," explained Kelsey on Wednesday.
The star - who shares his fifth, sixth and seventh children with Kayte - went on to amuse and surprise Conan with the news that his wife had suggested the X-rated location for her inked name.
'If ever, I maybe thought a peccadillo outside the marriage was a good idea, that whoever might be … you know … would read that this particular piece of equipment was already signed,' he squirmed.
The Cheers star previously revealed to ET that he's not without his gripes on marriage to his Hartlepool, UK, born wife.
He explained that she is very good at managing tasks for others, and sharing the domestic chores.
'[She] has this habit of…never let a person entering the room not turn into an opportunity to have something done,' he joked. 'Whenever anybody walks into the room, Kayte will think of something they should do. And it just drives me crazy. I'm like, "I was just passing through." [And she says,] "Were you going to put the kettle on?" "Oh, did you say you were going to make me a cup of coffee?" "Oh, the baby needs changing."'
The actor shares his eldest daughters, Spencer, 34, and Greer, 26, with exes Doreen Alderman and Barrie Buckner, while his two teenage children, Mason, 16, and Jude, 13, are shared with ex-wife Camille Grammer.
He shares three children - Faith, 6, Kelsey, 4, and Auden, 1 - with former flight attendant Kayte.
He stars opposite Kristen Bell in the new Netflix comedy Like Father, released on the streaming site on August 3.
In Like Father, Kristen plays a jilted bride who ends up going on her honeymoon cruise with her estranged father (Kelsey).
The movie also stars Seth Rogen, Zach Appelman, and Paul W. Downs.