car mercedes grocery maternity

Jennifer Aniston and Justin Theroux are normal people -- and X17 has the pix to prove it!

The couple stopped by Bel Air Foods and picked up cereal and coffee, along with some other necessities. We can't remember the last time we saw the 44-year-old actress shopping for her own groceries! Looks like someone's settling in to their new home and enjoying the domestic lifestyle ...

Jen wore a short blue dress and brown flip flops while JT wore his signature combo of boots, jeans and a tight tee. Temperatures reached close to 100 degrees in LA this weekend, which explains Jen's relaxed look.

Our photographer on the scene tells us, "Jen and Justin looked so in love. They look like they're already married - like they've been best friends forever."

Awww!