Blake Lively shows off incredible abs in rare bikini photo

The actress has taken to Instagram with a rare photo of herself posing poolside in a bikini, which also paid subtle tribute to Olivia Newton-John.

She’s one of the most beautiful women in Hollywood, known for her sophisticated red carpet looks.

But Blake Lively showed off her natural beauty in a recent Instagram photo, which showed the mother-of-three posing in a white bikini.

The 34-year-old Gossip Girl actress was all smiles in the rare stripped-back snap, revealing her incredible figure in a wraparound T-shirt style two-piece.

Lively also paid subtle tribute to Australian actress Olivia Newton-John in the caption, writing, “summer lovin’ … had me a blast,” referencing the late star’s iconic Grease song.

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Blake Lively posted a rare photo wearing a bikini.

Lively’s husband of 10 years, Deadpool star Ryan Reynolds, was one of the thousands to comment on the photo, writing, “Wrexham is the Ibiza of Wales.”

Reynolds, 45, is referencing the Welsh town of Wrexham, following his recent move to purchase part of the Wrexham soccer team with his friend Rob McElhenney.

Lively was reportedly furious over the purchase, with Reynolds telling US TV host Jimmy Kimmel on his late night show earlier this month he made the business decision without consulting with his wife first.

“I remember seeing Blake and saying, ‘I have bad news and I have really bad news. The bad news is I slipped into someone’s DMs again. The really bad news is that I might have bought half of a fifth-tier national Football League in Wales,’” Reynolds said.

He added her reaction was “not good.”

“We’re still working through that one,” Reynolds said.

“I might have bought half of a fifth-tier national Football League in Wales.” Picture: Gilbert Carrasquillo/GC Images

However, he later revealed in an interview with Entertainment Tonight that Lively eventually came around.

“We were laying in bed after [a] Wembley match and she’s like, ‘I’m now as obsessed if not more than you are with this club and this community and this town and everything it represents and where it can go,’” Reynolds said.

“She’s as obsessed as I am, she’s already looking at the schedule throughout the year wondering which matches she can attend so it’s pretty great.”