Former American Idol contestant Katharine McPhee has faked her first pregnancy….on screen at least in the film House Bunny which is currently filming.

“I [do] definitely want to have a baby, and it’s fun to just pretend and look in the mirror,” McPhee, 23, told Entertainment Tonight this week about wearing a faux bump to shoot House Bunny. “I think it’ll probably hold me off a bit on having a baby.

“Today is the first day I’m wearing the prosthetic belly, which wraps all the way around [to] my back, and it’s actually really comfortable,” she said.

McPhee says she keeps bumping into people on the set due to the increased heavy front load.

The fake bump is certainly on the larger side, McPhee explained to PEOPLE, “[In this project], I’m in my ninth month, so I should be hanging kind of low.”

Katharine seems to be being pretty smart about her career decisions.