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Ashton Kutcher and Mila Kunis

THAT 70'S SHOW, Mila Kunis, Ashton Kutcher, ' 'Til The Next Goodbye', (Season 7, epis. #725), 1998-2006, TM and Copyright © 20th Century Fox Film Corp. All rights reserved, Courtesy: Everett Collection

Ashton Kutcher and Mila Kunis Are Engaged: A Look Back at Their Love Story

Yahoo Celebrity

Since That '70s Show co-stars Ashton Kutcher, 36, and Mila Kunis, 30, are planning to wed, here’s a recap of their romantic history together.