Chrissy Teigen stuns in a swimsuit as she dances around a yacht

Chrissy Teigen was full of beans on Tuesday morning.

The Lip Sync Battle star took to Instagram to share a video of her dancing around the yacht she is currently on with her husband John Legend and their family.

Clad in a one-piece swimsuit, the 35-year-old pranced around energetically, showcasing her tan and her toned frame.

Full of beans: On Tuesday morning, Chrissy Teigen took to Instagram to share a video of her dancing around the yacht she is currently on

Waving her arms around emphatically, Chrissy showcased her physique in the tie-dye number.

The night before was John’s birthday, and she sizzled in a red strapless sequined dress, as she hosted a nerdy ‘math-off’ game show on her Instagram.

She and John are celebrating his 42nd birthday on a yacht in St Barts, along with their friends Mike Rosenthal and Jen Atkin.

Werk it! She is away with her husband John Legend and their pals

Werk it! She is away with her husband John Legend and their pals

Having fun? Clad in a one-piece swimsuit, the 35-year-old pranced around energetically

Having fun? Clad in a one-piece swimsuit, the 35-year-old pranced around energetically

Having fun? Clad in a one-piece swimsuit, the 35-year-old pranced around energetically

Looking fab: She filmed herself showcasing her tan and her toned frame

Looking fab: She filmed herself showcasing her tan and her toned frame

Off she goes: Waving her arms around emphatically, Chrissy showcased her physique in the tie-dye number

Off she goes: Waving her arms around emphatically, Chrissy showcased her physique in the tie-dye number

Off she goes: Waving her arms around emphatically, Chrissy showcased her physique in the tie-dye number

She looked camera ready on her Instagram Story, wearing star stickers under her eyes, while carrying construction paper note cards. 

She explained to her 33.5million followers: ‘For John’s birthday, we created the ultimate math-off competition. John and Mike love doing math. And so…’

Chrissy showed the men dressed as nerds, as they sat at coffee tables with make-shift game show buzzers, in front of a banner that read ‘math’ with the Jeopardy theme playing in the background. 

‘That’s what he gets for his birthday,’ she said with a laugh, before pulling out a fake microphone and putting it to her face: ‘Oh sorry… I don’t know if you guys could hear me.’

Nerd alert: Chrissy showed the men dressed as nerds, as they sat at coffee tables with make-shift game show buzzers, in front of a banner that read 'math' with the Jeopardy theme playing in the background

Nerd alert: Chrissy showed the men dressed as nerds, as they sat at coffee tables with make-shift game show buzzers, in front of a banner that read ‘math’ with the Jeopardy theme playing in the background

Lady in red: The 35-year-old looked camera ready on her Instagram Story, wearing star stickers under her eyes, while carrying construction paper note cards

Lady in red: The 35-year-old looked camera ready on her Instagram Story, wearing star stickers under her eyes, while carrying construction paper note cards

Game show: She explained to her 33.5million followers: 'For John's birthday, we created the ultimate math-off competition. John and Mike love doing math. And so...'

Speak up: 'That's what he gets for his birthday,' she said with a laugh, before pulling out a fake microphone and putting it to her face: 'Oh sorry... I don't know if you guys could hear me'

Game show: She explained to her 33.5million followers: ‘For John’s birthday, we created the ultimate math-off competition. John and Mike love doing math. And so… That’s what he gets for his birthday.’ She laughed before pulling out a fake microphone and putting it to her face: ‘Oh sorry… I don’t know if you guys could hear me.’

Marriage advice: Jen said before giving them a five-minute warning in a matching red sequined dress: 'If we teach you anything in life, marry a nerd'

Marriage advice: Jen said before giving them a five-minute warning in a matching red sequined dress: ‘If we teach you anything in life, marry a nerd’

Winner winner: 'John, can I have one interview? How does it feel?' Chrissy asked with a fake mic to her husband's face, as he held his trophy, answering her: 'I feel like I might get laid tonight'

Winner winner: ‘John, can I have one interview? How does it feel?’ Chrissy asked with a fake mic to her husband’s face, as he held his trophy, answering her: ‘I feel like I might get laid tonight’

She introduced the homemade game show: ‘For all of you at home, I just wanna let you know, this is sixth grade math. They have a 40-question math test in their hands. There will be bonus questions throughout the game. And again, this is a sixth-grade math competition show.’

The Sports Illustrated model later tuned back in: ‘And we’re back. Welcome to the 42nd annual math-off competition. We have John R Stephens from Springfield, Ohio and Mike J Rosenthal from Los Angeles, California today, competing for the title of math-off champion. Let’s see who’ll win.’

Jen said before giving them a five-minute warning in a matching red sequined dress: ‘If we teach you anything in life, marry a nerd.’ 

‘John, can I have one interview? How does it feel?’ Chrissy asked with a fake mic to her husband’s face, as he held his trophy, answering her: ‘I feel like I might get laid tonight.’ 

Chrissy later changed into a second look, sporting a black gown with white polka dots, as she said in the mirror: ‘Ok, back to street clothes.’ 

Wardrobe change: Chrissy later changed into a second look, sporting a black gown with white polka dots, as she said in the mirror: 'Ok, back to street clothes'

Wardrobe change: Chrissy later changed into a second look, sporting a black gown with white polka dots, as she said in the mirror: ‘Ok, back to street clothes’

Proud parents: The couple, who tied the knot in September of 2013, were also joined for the birthday dinner by their daughter Luna Simone, four, and son Miles Theodore, two

Proud parents: The couple, who tied the knot in September of 2013, were also joined for the birthday dinner by their daughter Luna Simone, four, and son Miles Theodore, two

Tragic loss: They experienced the tragic loss of their unborn son Jack back in September, after she was hospitalized with pregnancy complications

Tragic loss: They experienced the tragic loss of their unborn son Jack back in September, after she was hospitalized with pregnancy complications

The couple, who tied the knot in September of 2013, were also joined for the birthday dinner by their daughter Luna Simone, four, and son Miles Theodore, two.

They experienced the tragic loss of their unborn son Jack back in September, after she was hospitalized with pregnancy complications.

Chrissy posted an update last week on Instagram, with a mirror selfie, writing: ‘This is me and my body, just yesterday. Even though I’m no longer pregnant, every glance in the mirror reminds me of what could have been. And I have no idea why i still have this bump, honestly. It’s frustrating. 

‘But I’m proud of where this entire journey took my body and mind in other ways. I love being pregnant, so so much, and I’m sad I never will be again. But I am lucky to have two amazing little ones who are transforming into big little people more and more every single day. Anyhoo. Love u guys. Xx’ 

Never again: Chrissy posted an update last week on Instagram with a mirror selfie

Never again: Chrissy posted an update last week on Instagram with a mirror selfie