PICTURE EXCLUSIVE: Pregnant Blake Lively shows off growing baby bump in a bikini while straddling husband Ryan Reynolds as they holiday at Taylor Swift's beach house

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Blake Lively put her growing bump on full display during a very star-studded beach day with her husband Ryan Reynolds and singer Taylor Swift on Sunday.

The 28-year-old, who is pregnant with her second child, splashed in the waves alongside Taylor, the pop star's new beau Tom Hiddleston, Gigi Hadid, Karlie Kloss, Cara Delevingne, and Orange Is The New Black stars Uzo Aduba and Ruby Rose. 

The expectant actress wore a tiny burgundy string bikini that clung to her curves and tied at her back and hips as she waded in the surf at Westerly, Rhode Island.

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Life's a beach! Blake Lively put her growing bump on full display during a very star-studded beach day with her husband Ryan Reynolds at Westerly, Rhode Island on Sunday

Splashing around: The actress removed her shades as she ventured into the ocean

Hiking up an incline, the actress held hands with her husband Ryan Reynolds as they made their way up alongside the rocky ledge behind Taylor. 

Ryan sported sunglasses and a pair of striped swimming trunks that showed off his impressive leg tattoos.

His real-life leading lady wore her blonde hair slicked back with the water and shielded her eyes from the sun with a pair of shades.

The former Gossip Girl star was clearly feeling patriotic as she had her nails red and appeared to have smudged her eye make-up in the surf.

Having fun: The Gossip Girl straddled her husband as they frolicked with their A-list pals in the Atlantic Ocean

Mwah! The couple, who have been married for nearly four years, shared a kiss and a cuddle

Mom-to-be: The actress' clingy bikini put her figure on maximal display 

Doting husband: Hiking up an incline, the actress held hands with her husband Ryan as they made their way up the rocky ledge behind Taylor

Beach babe: Blake wore a tiny string bikini that clung to her curves and tied at her back and hips as she strolled on the surf

Follow the leader: Reynolds trailed after his stunning, bikini-clad wife 

But before heading up the incline, Blake got in a group snap with all the girls in the water.

The actress grinned from ear-to-ear as she posed beside Gigi, Karlie, and the rest of the ladies. 

Blake and her husband Ryan, who wed in 2012 after a one year whirlwind romance, will soon be welcoming their second child.

Splish, splash: Lively waded through the water alongside Gigi Hadid and Kloss

All together now! The ladies squeezed in tight to take a snap

Say cheese! Blake gave a wide and upbeat grin as she posed alongside her gal pals 

Hunk: Ryan looked super-hot as he prepared to walk away from the girls, which included actress Ruby Rose and model Gigi Hadid, as well as his beautiful wife

They are also parents to 17-month-old daughter, James.

Blake has been busy lately heavily promoting her new thriller The Shallows, which was released in June, which required her to work out for 13 hours a day while shooting her action movie.

Walk and talk: The ladies caught up as they strolled barefoot on the sand 

That's the spirit! Lively seemed to have got a head start to Independence Day with her red manicure 

She told US TV show Entertainment Tonight: 'I had an amazing trainer. I was fortunate to have Don Saladino help me out and he just kicked my butt in the best way, in the most healthy way...

'Being in waves like that, swimming like that, doing such long takes like that all the time - I became so much stronger and more fit by the end of production. 

'I was working out 13 hours a day because shooting was working out. It was neat to be able to do that, and it was neat to have that challenge after having a baby, because you think your body is so different - you think no matter what, it's never [going to be] totally be the same.'

Meanwhile: The star has been busy lately heavily promoting her new thriller The Shallows, which was released in June

Hand in hand: The couple stayed close as they journeyed beside the rocky incline 

In a separate interview with E!, the star said of her tough regime: 'It was eight months after having a baby so my body was already completely different than what it normally was. 

'Not just aesthetically but also your muscles are different, your body, everything is just shifted and changed.'

'I wouldn't have gotten in that kind of shape. It was like training for a marathon, but a marathon is one day. This was six weeks straight, six-day weeks, no lunch breaks, thirteen-hour days, four-foot waves at all times.

Family matters: Lively and her husband are also parents to a daughter named James 

One hard-working bikini! The burgundy two-piece struggled to contain the actress's pregnancy curves

Firm friends: Blake declared her affection for Taylor in an interview last year

Woo-hoo! New couple Tom and Taylor were playing around like a couple of teenagers in love

Jam-packed: The A-listers were just some of many who had flocked to the beach to enjoy the 4th July long weekend

'By the time I was done with the movie... I had muscles that I had never had before.'

Meanwhile, Blake has been friendly with Taylor since last year after the actress denied criticising the singer in an Instagram post.

The Gossip Girl star was accused of 'throwing shade' at Taylor after she posted a group shot of herself and fellow L'Oreal spokesmodels Karlie, Julianne Moore, Naomi Watts and John Legend on Instagram.

Tatt's enough! Ryan donned a pair of red, white, and blue trunks that put his impressive collection of tattoos on show

Part of the cool crowd: Despite being Canadian, Ryan showed his love for America with patriotic body paint, which didn't last long in the ocean

Doting husband: The Canadian actor looked protective as he helped his pregnant wife scramble up the rocks

She jokingly captioned it: 'Soooo, turns out this WASN'T a video shoot for John Legend's cover of Bad Blood," Lively wrote. "@lorealparisofficial blew it out for this one. My #pinkobsession is exposed now. Ok your turn. I won't tell! #AlsoTurnsOutJohnLegendIsntCoveringBadBlood Time to start a petition.'

After her sense of humour was misunderstood, she later took to Instagram to gush about Taylor: 'Umm whoever thought I was throwin' shade clearly doesn't know I have a "Taylor Swift Please Be My Wife Voo Doo Doll". #obsessed.

'Look how rad she is here making my niece Heather feel like a rock star. Love my Canadian family almost as much as I love Taylor Lively. I mean Swift. Ok, FIIINE we can hyphenate our last names. Xo Blake Swift-Lively 4eva.'

Off they go: Blake and Ryan disappeared over the rocky ground as their litany of famous pals remained on the beach

Love: Getting their own fair share of attention away from Blake and Ryan were new lovebirds Taylor and Tom 

What a gaggle! Ryan and Blake were just visible behind their large group of friends as they soaked up the sunshine

Such fun: The A-list contingent let loose like any group of people enjoying the Fourth of July holiday

Strike a pose! The ladies of the group were in high spirits and eager to strike a #girlsquad pose

Blake and her husband Ryan, who wed in 2012 after a one year whirlwind romance, will soon be welcoming their second child

Swift bout the $17million, eight bedroom and 10.5 bathroom mansion in all cash in the spring of 2013