Sydney Sweeney HBO Euphoria Season 2

Credit: Eddy Chen/HBO Max

It took a lot of work for Sydney Sweeney to get "pregnant." 

The Euphoria star, 24, gave her followers a behind-the-scenes look at the long process of creating her pregnant belly for the HBO series. In a series of Instagram Stories, Sweeney summarized how she had a full-body cast made to fit the pregnant prosthetic to her body perfectly.