"American Horror Story" Wedding on the Way!

American Horror Story: Coven fans, here's one plot twist we didn't see coming — co-stars Emma Roberts and Evan Peters are engaged to be married in real life!

The 22-year-old actress met Peters, 26, while filming the dark comedy Adult World, and they began dating in the spring of 2012. Extra reports that the onscreen-offscreen lovers put a ring on it — a pink gold diamond sparkler, to be exact — during the holidays in London. (We think Madison Montgomery would approve, no? Franken-Kyle couldn't be reached for comment.)

In an interview with Nylon magazine, Roberts reveals that she and Peters "didn't get along at first," but their platonic relationship heated up a few months later ("which worked out for the best").

Like her famous aunt, Julia Roberts, she believes in true love: "I come from the school of getting married once. Every relationship should be important. Everyone kind of rolls their eyes at me, but I still believe in the romantic movie outcome."

Congratulations to the happy couple!

—Stefania Sainato