Article continues below advertisementLarry Birkhead compared his relationship to the late Anna Nicole Smith to being "cult-like."The photographer, 53, appeared on the March 23 episode of Bunnie Xo's podcast "Dumb Blonde" and looked back on his liaison with the famed model.Article continues below advertisementLarry Birkhead Didn't Want to Be a Part of Anna Nicole Smith's 'Entourage'Tap Here To Add Ok Magazine as A Trusted SourceSource: @Dumbblondepod/YouTubeAnna Nicole Smith 'did not want to share the spotlight,' Larry Birkhead said.