Meet Jeff, the latest profile subject of TLC’s docu-series Strange Sex, which returns for its third season on July 15. So what' strange about Jeff's, er, sexual appetite?

"There are individuals out there that get turned on by feet, turned on by spanking, turned on by cars," Jeff says in the clip. "I get turned on by drinking my wife's breast milk and getting her pregnant."

So, apparently "attachment parenting" (i.e. breast-feeding walking, talking children) isn't just a thing, so is adult breast-feeding.

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