The newly engaged couple, who are expecting her first child together, were spotted being "super lovely dovey together" at Los Angeles International Airport, as they headed to his hometown of Cedar Rapids for one night on Saturday (29.03.14).
A source told UsMagazine.com that the 'Two and a Half Men' actor, 36, and the 'Black Swan' star, 30, stayed with his mother Diane Finnegan Kutcher.
They were also spotted shopping at Target and had dinner at Granite City restaurant with his family during their brief visit, before flying back to LAX on Sunday (30.03.14).
A source previously revealed the former 'That 70s Show' co-stars are thrilled to be expecting their first child later this year.
The insider said: "They are happy, healthy, and excited to start a family."
A friend recently claimed the couple are planning to get married in an LA registry office as early as next month.
But another source insisted: "There is no rush to get married. The wedding will be very intimate and private."
Ashton, 36, began dating the brunette beauty in 2012, following his split from his first wife Demi Moore, but they have known each other since Mila was 14.