Liv Tyler's using her pregnancy for one awesome Halloween costume!
The actress posted some new photos of her outfit via Instagram on Wednesday, rocking a giant oven suit with a little something inside.
"Bun in my oven ..." she captioned the cute photo, as she sipped a drink near a table full of children.
In another photo, we get a better look at the 37-year-old's costume as she poses alongside her 9-year-old son Milo.
"Halloween school dance. My favorite party!!!!!," she captioned the sweet snap.
We're not sure what exactly Milo's dressed up as, but it does look like he was having a lot of fun with his famous momma!
Tyler's currently dating David Beckham's good friend Dave Gardner, and this will be the first child for the cute couple. Liv and her ex-husband Royston Langdon are the parents to Milo.
What do you think of the brunette beauty's bun in the oven getup? Tell toofab in the comment section below and click "Launch Gallery" above to see more of this year's best celebrity Halloween costumes -- wait until you see who was Princess Fiona from "Shrek"!
