The Spice Girl shuns nightwear so she can feel the soccer star's athletic physique next to her body.
Victoria - who has three sons, eight-year-old Brooklyn, five-year-old Romeo and two-year-old Cruz, with David - said: "I sleep naked. I'm going to be naked if I'm getting in bed with him every night!"
Victoria - who has her own clothing line, DVB, and a 'His' and 'Hers' fragrance line with David - also slammed her celebrity rivals, including Paris Hilton, who she claims have no input into their respective empires.
She added: "There are so many, and I hate the word celebrities, clothing lines and fragrances, and most of them have nothing to do with it."
The 33-year-old style icon, who is currently on the Spice Girls reunion world tour, joked her love of fashion comes from her inner "gayness".
