Laura Prepon, Ben Foster Engaged After Whirlwind Romance: See Her Engagement Ring!

Soon-to-be Mr. and Mrs. Foster! Laura Prepon and Ben Foster are engaged after a whirlwind romance, a source reveals to Us Weekly.

Prepon, 36, showed off her stunning engagement ring as the two made their red carpet debut as a couple at the L.A. premiere of The Girl on the Train on Tuesday, October 4.

Laura Prepon and Ben Foster
Laura Prepon and Ben Foster attend 'The Girl on the Train' New York premiere on Oct. 4, 2016. D Dipasupil/FilmMagic

Foster, 35, popped the question with a round-cut diamond with a gold band. The Orange Is the New Black actress placed her hand on Foster's arm as they posed for photos at the star-studded event, allowing her ring to shine and be seen. She paired the gorgeous new accessory with Forevermark jewelry.

Us broke the news in July that Prepon and the Finest Hours actor were dating. That month, the two got cozy while hanging out at the Ugly Mug pub in Cape May, New Jersey. "They were really close, talking and laughing," an onlooker told Us at the time.

Laura Prepon and Ben Foster
Laura Prepon and Ben Foster attend 'The Girl on the Train' New York premiere. Gary Gershoff/WireImage

This will be the first marriage for both. Prepon previously dated Christopher Masterson from 1999 to 2007 and Greek alum Scott Michael Foster from 2008 to 2013.

Foster, meanwhile, most recently dated Robin Wright. They met on the set of their 2011 drama Rampart and got engaged in January 2014. They then called off their engagement in November 2014, but rekindled their romance last January, only to split for the second time in August 2015.

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics and more delivered straight to your inbox!

Want stories like these delivered straight to your phone? Download the Us Weekly iPhone app now!

Close popup

Welcome to In Motion

Bring photos to life with Us Weekly's exciting new mobile experience!

What's In Motion? Tell me more

What's In Motion?

Go back

How to Use In Motion

What's In Motion? Tell me more