Article continues below advertisementTravis Barker sparked backlash after sharing a birthday tribute to his wife, Kourtney Kardashian, that included a very intimate moment fans didn't expect.On Sunday, April 19, Barker marked Kardashian's 47th birthday with a carousel of loved-up Instagram photos, including one playful snap where he's seen kissing her toe.Article continues below advertisementSource: @travisbarker/InstagramTravis Barker was slammed after posting a photo of himself kissing Kourtney Kardashian's foot.