Jeff exhibits paraphilia, defined by the psychiatric Diagnostics and Standards Manual (DSM5) as "intense sexually arousing fantasies, sexual urges or behaviors generally involving nonhuman objects, the suffering or humiliation of oneself or one's partner, or children or other nonconsenting persons that occur over a period of at least six months."
Anderson is not convinced that Michelle, who has chronic back pain and other health issues, is fully consenting. "She is really indulging him," said Anderson.
"He is all about, 'I am a freak and I am proud,' but it's a little too celebratory and creepy," she said. "I feel like his wife claims to be on board, but I get the vibe that he is being quite manipulative with her."
Sexual fetishes, which fall under the wider umbrella of paraphilias, are not that uncommon, according to Anderson, who has participated in other "Strange Sex" episodes that include a man who pops balloons for sexual pleasure and another man set for next week's show who is obsessed with stinky tennis shoes.
"A fetish is when a person prefers an object to a live person and it becomes a requirement for a sexual response," she said. "Without the shoe, the man cannot achieve or maintain an erection. I have seen that with fur, rubber, diapers, bugs -- even car fetishes -- anything you can think of, there is a sector out there."
One of her patients fell in love with an inflatable duckie he found on the beach as a child. By the time he reached puberty it became sexual. "Some imprinting goes on and hard wiring and it's extra difficult to change it," she said of those with fetishes.
Scientists are now looking to neurological rather than environmental causes for sexual fetishes. SSRI antidepressants are beginning to show some promise in treating these people.
"It turns the volume down on compulsive and preoccupying urges and enables them to respond to more conventional relations," said Anderson. "But we don't know how or why."
Jeff and Michelle had little interest in seeking more help for his fetish.
"They are celebrating their lifestyle and not taking into account the down sides or the health risks," Anderson said. "He's all about being a freak and I am proud."
She said the breast-feeding fetish is seen less often than Jeff's desire to impregnate his wife. She said the couple would be good candidates for psychotherapy.
"There are plenty of guys who have tasted their wives' breast milk by accident or out of curiosity or who have explored it in sex play, but it doesn't become the focus and it doesn't take on a life of its own," said Anderson. "Being able to drink someone's breast milk is not so far out there. But he is over the top."