im Kardashian and family with the exception of sister Khloe go to Easter Sunday Mass in Calabasas, CA. Credit: AKM-GSI

That's some hot Sunday best!

After spending time with potential new boyfriend Kayne West in New York City last week, Kim Kardashian celebrated Easter with her family in Los Angeles.

Clad in a bright yellow blouse, black cropped blazer, white pleated mini skirt and sky-high Christian Louboutin heels, the 31-year-old reality star showed off her recent 10 pound weight loss as she headed to church.

She was joined by her six-months-pregnant sister Kourtney (in a loose white dress and pink ballet slippers), mom Kris (in a fitted print look with a white Hermes Birkin) and younger siblings Kendall and Kylie ( in floral numbers). Mason, 2, who was decked out in pink pants, a matching blazer and a peach gingham button down (all by Tom & Drew Boys), got a lift from Bruce Jenner.

Last month the Kardashians jetted off to the Dominican Republic for a luxe getaway.

"We had the best time relaxing," Kim tells Us Weekly of the family's time at the posh Casa de Campo complex, where they rented a $6,000-per-night 35,000-square-foot villa.