Khloe Kardashian isn't the only significant other who hawks her partner's merch ... turns out it's a thing.
Wives and girlfriends of lots of superstar athletes know the drill -- love me, love my sponsor. In Khloe's case it could be a goldmine for Tristan Thompson. When he negotiates with Nike, he can point to his girlfriend's 60 million Instagram followers and make an extra buck or two.
Celeb couples advertising together ... they just do it.