Ashton sat with his arm around Mila at the Staples Centre in Los Angeles while they watched the Los Angeles Lakers take on the New Orelans Pelicans on Tuesday night (4 March).
They were later snapped enjoying an animated conversation, while Ashton also held Mila's hand – which was sporting that huge engagement ring.
Family Guy's Mila kicked off engagement rumours when she was pictured wearing a large diamond on her engagement ring finger while shopping with her mum in LA.
The notoriously private couple didn't publicly confirm an engagement, although Mila did share a sweet picture of herself and Ashton via Instagram, writing: "I love you."
That ring was evident on Mila's hand last night as well – and she certainly wasn't trying to hide it. If this engagement is true, then congrats to the happy couple!
Ashton and Mila met on the set of sitcom That '70s Showwhere they starred as Kelso (one of our childhood crushes!) and the fabulously stylish Jackie.
Friendship blossomed into romance around two years ago, following Ashton's separation from wife Demi Moore. Mila, meanwhile, was previously in an eight-year relationship with Macaulay Culkin.
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