A mom from Atlanta, who hasn't breastfed since her daughter was a baby 20 years ago, is giving it another go. This time with her bodybuilding boyfriend.

She's not alone. It's called an "adult nursing relationship" or adult breastfeeding relationship -- ABR for short -- and it has spawned support groups, online tips and even a dating site to match partners.

It's exactly what you think it is: women who nurse their partners.

Jennifer Mulford told the U.K. Sun she had no luck with online dating matches when she first became interested in ABR, but was lucky enough to discover an old high school boyfriend -- Brad Leeson -- was curious about it.

How old is 'too old' for breastfeeding? Because this guy is 36... https://t.co/ndfDVrojcJpic.twitter.com/LHLIXIHqWZ — The Sun (@TheSun) June 7, 2016

"We both wanted the same thing out of the relationship - a magical bond that only breastfeeding can achieve," Mulford told the paper.

Unfortunately, because she's been out of the game for two decades, Mulford said her body needs some coaxing to induce milk flow. She pumps her breasts every two hours, takes herbal meds and eats a special diet to initiate lactation and maintain milk supply.

"Nights have been a struggle because Brad sleeps so peacefully but we manage to cope - until he falls asleep latched onto me, which is beautiful," she told the Sun.

Brad, an avid bodybuilder, apparently appreciates the added benefit of nutrition from the breast milk.