Jennifer Mulford’s arrangement with 36-year-old boyfriend Bread Leeson isn’t unique, according to the Sun, and it’s part of what’s known as an adult breastfeeding relationship (ABR). Sex Within Marriage contains a whole page dedicated to the practice which says men “report feeling calmed and soothed” by breastfeeding, and says it “seems to promote bonding in the relationship.”

Mulford said she wasn’t familiar with ABR until she stumbled across it online.

“When I read about the bond breastfeeding could create between two people, I was envious,” she told the Sun. “I have always enjoyed my breasts being touched during sex more than anything else, so I knew I would enjoy it.”

She searched online to find a partner who was looking to start an ABR relationship, according to the newspaper, but struck out with personal ads, profiles on dating sites and even posts on Craigslist. That’s when she began speaking to Leeson, an ex-boyfriend from her school days.