Rumer Willis seen for the first time since announcing pregnancy with boyfriend Derek Richard Thomas

Rumer Willis has been spotted in public for the first time since she announced her pregnancy two weeks ago.

The oldest child of Demi Moore, 60, and Bruce Willis, 67 — who reunited for a tender picture in December — rocked a beige knit sweater, black skinny jeans, and Birkenstocks with socks as she walked next to her boyfriend Derek Richard Thomas while running errands in Los Angeles on Sunday.

The 34-year-old expecting mother wore her hair up in a bun in the back with a few curly tendrils hanging in front as she walked through a parking lot after exiting a grey all-electric Jeep SUV.

Expecting parents: Rumer Willis was seen for the first time since she announced her pregnancy two weeks ago on Saturday in LA

Expecting parents: Rumer Willis was seen for the first time since she announced her pregnancy two weeks ago on Saturday in LA

Derek wore a pink striped button up shirt, black jeans, and boots and styled his long hair down and tucked behind his ears.

Rumer and the Vista Kicks frontman posed for an image together flaunting her baby bump on social media in coordinated black outfits in front of a large window amid a snowy landscape over the holidays.

The announcement image posted to her Instagram story two weeks ago proudly showcased her bump in a skin-tight black bodysuit. 

Famous parents: The oldest child of Demi Moore, 60, and Bruce Willis, 67 walked next to her boyfriend Derek Richard Thomas

Famous parents: The oldest child of Demi Moore, 60, and Bruce Willis, 67 walked next to her boyfriend Derek Richard Thomas

Casual: Willis rocked a whole slew of piercings and wore a beige knit sweater that covered her baby bump

Casual: Willis rocked a whole slew of piercings and wore a beige knit sweater that covered her baby bump

Rocker vibe: Derek wore a pink striped button up shirt with black jeans and boots and wore his long hair down

Rocker vibe: Derek wore a pink striped button up shirt with black jeans and boots and wore his long hair down

Proud mommy-to-be: Rumer and the Vista Kicks frontman posed in coordinated black outfits in front of a large window amid a snowy landscape to announce the pregnancy

Proud mommy-to-be: Rumer and the Vista Kicks frontman posed in coordinated black outfits in front of a large window amid a snowy landscape to announce the pregnancy

The actress’s boyfriend stood beside her, cheekily posing with his flat stomach in order to highlight the difference in their profiles.

In the announcement, the happy couple posted a series of images that showed the indie musician looking elated at he rested his head on her growing bump.

Demi Moore posted the same images on her Instagram and captioned: ‘Entering my hot kooky unhinged grandma era.’ 

Looking cool: Rumer also rocked black skinny jeans and Birkenstocks with socks

Looking cool: Rumer also rocked black skinny jeans and Birkenstocks with socks

First grandchild: This will be the first grandchild for Demi Moore and Bruce Willis

First grandchild: This will be the first grandchild for Demi Moore and Bruce Willis

Demi, the excited Grandma: Moore also posted her daughter's announcement images on her own Instagram with the caption: 'Entering my hot kooky unhinged grandma era'

Demi, the excited Grandma: Moore also posted her daughter’s announcement images on her own Instagram with the caption: ‘Entering my hot kooky unhinged grandma era’

Supportive family: The Ghost actress, 60, went on to post a picture from her daughter's sonogram appointment

Grandma Demi: Rumer’s mother Demi Moore (60, center) went on to post a picture from her daughter’s sonogram appointment. The Ghost star posed with one of her many small dogs and her two other daughters – Scout (28, arms raised) and Tallulah (31, far right) – while Rumer glowed on an examination chair with her belly exposed 

Demi went on to post a picture from her daughter’s sonogram appointment. 

The Ghost star posed with one of her many small dogs and her two other Willis daughters — Tallulah, 28, and Scout, 31 — while Rumer glowed on an examination chair with her belly exposed. 

Bruce Willis and his second wife Emma Heming, 44, also shared a sweet post on Instagram, writing: ‘Baby news is happy news!!! Congratulations @rumerwillis and @derekrichardthomas we are elated over here!’

The Die Hard action icon has been going through a difficult struggle with aphasia, a brain disorder that affects an individual’s ability to speak and understand language. 

Grandpa Bruce: Rumer's father Bruce Willis, 67, and his second wife Emma Heming, 44, also shared a sweet post on Instagram

Grandpa Bruce: Rumer’s father Bruce Willis, 67, and his second wife Emma Heming, 44, also shared a sweet post on Instagram

Can't wait: They wrote, 'Baby news is happy news!!! Congratulations @rumerwillis and @derekrichardthomas we are elated over here!'

Can’t wait: They wrote, ‘Baby news is happy news!!! Congratulations @rumerwillis and @derekrichardthomas we are elated over here!’

Cooling down: Rumer appeared to hydrate with a sparkling water after grabbing groceries

Cooling down: Rumer appeared to hydrate with a sparkling water after grabbing groceries

Bruce’s family went public with his diagnosis in March of this year and announced his retirement from acting. 

This will be Demi and Bruce’s first grandchild. 

The A-listers were one of Hollywood’s ultimate power couples throughout their mutual heyday of the ’90s, tying the knot in 1987 and parting ways in 2000. 

A-list grandparent: This will be Demi and Bruce's first grandchild. The A-listers were one of Hollywood's ultimate power couples throughout their mutual heyday of the '90s, tying the knot in 1987 and parting ways in 2000

A-list grandparent: This will be Demi and Bruce’s first grandchild. The A-listers were one of Hollywood’s ultimate power couples throughout their mutual heyday of the ’90s, tying the knot in 1987 and parting ways in 2000

source: dailymail.co.uk