She told Ellen Degeneres: "You know Christina Aguilera has 'Naked Sundays'?
"I might have to copy her and do that.
"I'll do 'Seal and Heidi's Naked Sunday.
"Every Sunday in bed without our clothes on."
The Victoria's Secret model revealed the pair like to enjoy romps in the attic, while Seal added: "This is the longest time I've known Heidi without her being pregnant."
Heidi tells everyone it was Seal's crotch bulge which attracted her to him. !
