Laura Prepon of “Orange Is the New Black” reportedly has become engaged to “Hell or High Water” star Ben Foster.

At the New York premiere Tuesday of “The Girl on the Train” at Regal E-Walk Stadium 13 in Times Square, Prepon, who plays a supporting role in the Emily Blunt thriller, appeared on the red carpet with Foster, displaying what appeared to be a diamond engagement ring. People magazine and E! News, each citing anonymous sources, said the two were engaged.

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Pepon, 36, and Foster, who turns 36 later this month, have been photographed together publicly since June, and the following month were seen behaving romantically over a meal at the French bistro Lucien in New York City’s East Village, reported Us Weekly at the time.

The stars have not commented on social media. Prepon’s spokeswoman did not respond to a Newsday request for comment. A representative for Foster could not be reached.

This would be a first marriage for both. Foster reportedly was engaged to “House of Cards” star Robin Wright for 10 months before the two ended their relationship in November 2014. Prepon had been in a relationship with Christopher Masterson, brother of her former “That ‘70s Show” castmate Danny Masterson, before breaking up in 2007. She began seeing actor Scott Michael Foster in 2008, but by 2013 the two were no longer dating.

Prepon next stars opposite Sam Elliott in director Brett Haley’s “The Hero.” Foster will appear in director Scott Cooper’s Western “Hostiles,” starring Christian Bale and Rosamund Pike.