Sofia Richie slips into a bikini to celebrate her 20th birthday

As the daughter of superstar singer Lionel Richie, she’s surely used to being spoiled on her birthday.

And while she may not have spent her 20th birthday with daddy, Sofia Richie was not left disappointed, as she celebrated in Mexico on Saturday.

Stepping in to ensure she had the day of her dreams was her 35-year-old boyfriend, Scott Disick.

Well Hello: Sofia Richie slips into a bikini to celebrate her 20th birthday with Scott Disick and his kids in Mexico on Friday

Is that daddy calling? Sofia was pictured taking calls as she soaked up the sun, perhaps from her singer father Lionel Richie

Company: Sofia had a female friend with her on the trip; the group stayed at Kardashian-favorite holiday spot Casa Aramare, the Punta Mita beachside villa owned by Scott's pal and Girls Gone Wild creator Joe Francis

Company: Sofia had a female friend with her on the trip; the group stayed at Kardashian-favorite holiday spot Casa Aramare, the Punta Mita beachside villa owned by Scott’s pal and Girls Gone Wild creator Joe Francis

Along with his three children, and a female friend of Sofia’s, the group stayed at Kardashian-favorite holiday spot Casa Aramare, the Punta Mita beachside villa owned by Scott’s pal and Girls Gone Wild creator Joe Francis.

On Friday night they were entertained by a mariachi band as they dined at the villa, with Sofia sharing a clip to Instagram stories.

In it, Scott’s daughter Penelope Disick, six, ate her ice cream as the band performed.

In great shape: The young adult wore a strapless brown bikini for her day in the sun

In great shape: The young adult wore a strapless brown bikini for her day in the sun

Chief of fun: Sofia’s boyfriend Scott Disick, 35, is in charge of the celebrations

Kids club: Scott brought along six-year-old Penelope and sons Mason, eight, and Reign, three

Kids club: Scott brought along six-year-old Penelope and sons Mason, eight, and Reign, three

Later they ventured out into the torchlit grounds to take turns whacking a pinata shaped likeJack Skellington from The Nightmare Before Christmas.

Sofia also shared close ups of the diamante detailing on her dress, along with a picture with her girl friend.

The two were also photographed enjoying a relaxing day together, with Sofia and her pal reclining on sunbeds.

Taking a stroll: Sofia and her friend explore the white sands in front of the beachside villa

Taking a stroll: Sofia and her friend explore the white sands in front of the beachside villa

Living it up: On Friday night they were entertained by a mariachi band as they dined at the villa, with Sofia sharing a clip to Instagram stories

Living it up: On Friday night they were entertained by a mariachi band as they dined at the villa, with Sofia sharing a clip to Instagram stories

Topping up her tan: The young model relaxed as she soaked up the view 

Topping up her tan: The young model relaxed as she soaked up the view 

Making memories: During their trip Scott and Sofia have also visited the Marietas Islands where they did some snorkeling and enjoyed a private beach

Sofia wore a strapless brown bikini for her day in the sun, taking a stroll on the beach in the two-piece.

She was also pictured chatting on her phone as she soaked up the sun, perhaps checking in with her famous father.

During their trip Scott and Sofia have also visited the Marietas Islands where they did some snorkeling and enjoyed a private beach.

Also in Mexico but enjoying a girl’s trip is Scott’s ex Kourtney, while Scott entertains Penelope and sons Mason, eight, and Reign, three.

Read more at DailyMail.co.uk