Joaquin Phoenix made a major announcement during an appearance on The Late Show with David Letterman on Monday, Dec. 8 — he's engaged! The Her actor hilariously explained he fell in love with his yoga instructor after attempting a position called "harnessing the hog."

 

"First we do these breathing exercises and I go, 'I can do this'…and then she says we are going to get in the first position — the "harnessing of the hog,'" Phoenix recalled of first meeting his now-fiancée. "Before I can say, 'Who is the hog?' She grabs me — and it's a compromising and vulnerable position — and she gets a strap and puts it [around me] and she's thrusting [against] me and I go, 'Oh, no! My back pain!' And she goes, 'No, that's your emotional back pain,'" the actor recalled, all while attempting to recreate the painful-looking position.

 

"This is the crazy part of the story," he then tells Letterman. "We started dating, and I think she's the one. I proposed to her and she said yes. If everything works out [Im getting married]," he concluded.

Phoenix, who was famously linked to Liv Tyler in the '90s, was last linked to 20-year-old DJ Allie Teilz.

Watch the hilarious clip above for yourself!