Molly Sims celebrates her 46th birthday in skimpy bikini

Molly Sims is an actress, model, and mother-of-three and this weekend she's turning another year older.

The stunner is celebrating her 46th birthday on Saturday with a trip to Cabo San Lucas, Mexico.

"Ready for my birthday weekend," the "Vegas" actress captioned a recent photo while also showing off her toned abs and long hair.

MOLLY SIMS GETS CANDID ON MOTHERHOOD, WHY SHE PUT HOLLYWOOD ON HOLD

Sims donned a Zimmerman pink ruffled bikini and held a drink in her hand. The star is definitely treating herself since the swimsuit costs over $2,700.

"I love my birthday," she added. "I get to be with my kiddos for one more year."

Just a few days before, Sims shared one of her many workout videos

"Posting my first #workoutwednesday series! This is something a lot of you have been asking me to do & my first time posting sooo bear with me," she wrote. Her tough exercises include lunges, planks, squats, and mountain climbers.

MOLLY SIMS GETS CANDID ABOUT HER FERTILITY STRUGGLES: 'I DON'T WANT IT TO BE SOME DIRTY LITTLE SECRET'

To maintain her svelte figure, Sims told Shape magazine, "I have to work out 60 to 90 minutes at least five days a week and stick to a high- fiber, low-calorie eating plan."

"This does not come naturally," she added and to incentivize herself to maintain the rigorous exercise schedule she treats herself. "I give myself something I really want, like a new handbag or a piece of jewelry I’m coveting."

Sims is married to movie producer Scott Stuber. The couple shares three kids together: Brooks, 6, Scarlett, 4, and Grey, 2.