Mila Kunis  and Ashton Kutcher  took their love off screen almost two years ago, and now the former That '70s Show costars are engaged  and expecting their first child together ! The couple has showed off adorable PDA throughout their relationship, and the common denominator between many outings is one accessory: Ashton's many baseball caps. Scroll through some of their cutest photos, including courtside kisses (even on the kiss cam!) , walking down the aisle for their siblings' weddings, and matching clothing. And if you can't get enough of them, check out how Kelso and Jackie's love story came true , transforming into a sweet real-life romance.
Source: Getty 
Ashton and Mila attended the seventh annual Chrysalis Butterfly Ball in May 2008 in LA.
They laughed at a Clippers game in LA in March 2014, just before announcing her pregnancy.
Mila and Ashton wore matching "Kutcher" jerseys out in LA in December 2013.
The couple got cozy on the sidelines at a football game in Pittsburgh in September 2013.
They were all smiles at her brother's Florida wedding  in December 2013.
The sweet duo snuck a kiss at a January 2014 Lakers game in LA.
Mila giggled at Ashton as he snapped her photo at a March 2014 Clippers game in LA.
They kept it casual during a coffee run in NYC in October 2012.
The couple cuddled up to keep warm while exploring Rome together in November 2012.
Ashton and Mila held hands while walking through Bali's airport in August 2012 after a PDA-filled vacation .
They walked hand in hand while in Australia for a romantic November 2012 vacation.
The duo roamed the streets of Rome early in the morning in November 2012.
Ashton whispered in Mila's ear during the Fox Television Critics Association press tour in January 2004 in Hollywood.
Source: Getty / Kevin Winter 
They shared an LA gym date in October 2012.
Mila kissed Ashton's shoulder during a dinner date in NYC in November 2012.
Ashton convinced Mila to cheer for his team as the two spent a day together in NYC in September 2012.
They first became friends while working on That '70s Show in 1998.
The couple snuck a kiss after dinner in NYC in September 2012.
They were hand in hand for a walk around LA in October 2012.
Ashton and Mila took their dog for an early-morning walk in LA in October 2012.
They posed with their That '70s Show costar Danny Masterson at the December 2000 premiere of Traffic in LA.
Source: Getty / SGranitz 
The couple spent New Year's 2013 in Brazil together.
Ashton wrapped his arms around Mila in NYC in September 2012.
Ashton led the way as he and Mila went to dinner in Rome in November 2012.
The duo went out for dinner in NYC in October 2012.
They walked hip to hip through LA with their dog in December 2012.
Mila gave Ashton a sweet glance during a performance with Danny Masterson at a Christmas fundraiser in LA in December 2003.
Source: Getty / Frazer Harrison 
They held hands in LA in October 2012.