Nicole Richie and sister Sofia Richie spend a girls day together on a bike ride in Santa Barbara

Nicole Richie and her younger sister Sofia Richie enjoyed a day out in Santa Barbara on Sunday.

The two siblings were spotted enjoying the afternoon sun and getting some fresh air while riding electric bikes.

The close sisters are daughters of successful musician Lionel Richie. Nicole, 40, was adopted by the singer and his first wife, Brenda Harvey, when she was 9 years old. Model Sofia, 23, is his biological daughter.

Sunday afternoon outing: Nicole Richie, 40, and Sofia Richie, 23, were spotted on a bike ride together in Santa Barbara on Sunday

Sunday afternoon outing: Nicole Richie, 40, and Sofia Richie, 23, were spotted on a bike ride together in Santa Barbara on Sunday

Both sisters kept their looks casual and comfortable for their afternoon bike ride.

Nicole, driving ahead of her younger sister, donned a black sweater with white stripes. The top was long sleeved in case the weather got a little chilly later in the day.

The Simple Life star added a pair of black leggings for easy pedaling on the bike. The mother-of-two added black socks and trainers.

To complete her look, Nicole added a black cap and sunglasses to protect her eyes from the bright sun.

A fun day: The two siblings were all smiling and appeared to be having a great time together over the weekend

A fun day: The two siblings were all smiling and appeared to be having a great time together over the weekend

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Sofia, too, kept her ensemble simple and chic. The model wore dark blue leggings with a black tank top which she covered with a black zipped jacket.

She slipped into a pair of white Nike sneakers to make cycling easy and comfortable.

The beauty parted her hair down the middle and tossed her tresses in a bun secured with a large clip.

She also donned a pair of stylish shades as they spent the hot day under the sun.

Big smiles: The sisters had big smiles on their faces as they moved around a bit and drove around Santa Barbara

Big smiles: The sisters had big smiles on their faces as they moved around a bit and drove around Santa Barbara

Close Bond: Despite their 17-year age difference, Sofia and Nicole seem to get along very well and have a close relationship

Close Bond: Despite their 17-year age difference, Sofia and Nicole seem to get along very well and have a close relationship

Both Nicole and Sofia are virgins, and during a joint interview, which the singer posted to her Facebook page, the siblings weighed in on each other’s favorite traits.

Speaking about her older sister, Sofia said, “What I like most about my sister is that she is the easiest person to talk to and she gives the best advice.”

Nicole added how much she enjoys spending time with Sofia. “She’s my favorite person to laugh with, which is the greatest compliment because my priority every single day is laughing.”

Sister love: During an interview, Sofia explained that Nicole is the

Sister love: During an interview, Sofia explained that Nicole is the “easiest person to talk to”.

Family Time: Nicole and Sofia seem to take family time very seriously, making it a priority in their busy lives

Family Time: Nicole and Sofia seem to take family time very seriously, making it a priority in their busy lives

Later during the interview, Nicole added that the two “love spending time together, we love collaborating and we all love being creative.”

Last year in 2021 both sisters got together and collaborated to create a clothing line for Nicole’s company House of Harlow 1960.

The idea of ​​creating a collection together came about during the pandemic. “…We just talked about our individual hopes and dreams and what we wanted to do and do,” the Making The Cut star told WWD.

The reality star is very supportive of her younger sister and had a hilarious reaction when Sofia got engaged to Elliot Grainge earlier in April this year.

Alongside a photo of the pair posing together and Sofia flashing her new engagement ring, Nicole captioned it: “I can’t wait to find ways to do this about myself.”

There for each other: Both Sofia and Nicole appear to be very supportive of each other

There for each other: Both Sofia and Nicole appear to be very supportive of each other

Big news: The stunning beauty got engaged to boyfriend Elliot Grainge in early April this year

Big news: The stunning beauty got engaged to boyfriend Elliot Grainge in early April this year