Kaia Gerber has been getting her acting feet wet working on Hulu’s ‘American Horror Stories.’ The series is a spinoff of the popular ‘American Horror Story’ and while the show is streaming, the cast and crew are simultaneously filming the final episodes.A post shared by Kaia (@kaiagerber)It turns out that the 20-year-old’s character gets pregnant with an alien on the show, causing the supermodel to wear a fake baby bump.