Rachel Hunter shares sweet family photo with her lookalike sister in celebration of her birthday

It appears good looks run in Rachel Hunter's family.

In celebration of her sister Jacqui's birthday this week, the 51-year-old model took to Instagram to pay a sweet tribute to the birthday girl.

Posting a throwback photo of the siblings together, fans were left doing a double-take with how much they lookalike.

Alongside the picture, Rachel wrote: "Happy Birthday to this INCREDIBLE SOUL my sister. God I can’t wait to see you!"

In the snap, the sisters can be seen absolutely beaming.

Jacqui is married to former Team New Zealand sailor Craig Monk, who helped the team win the America's Cup for the second time in 2000.

He also won a Bronze medal in sailing at the 1992 Olympic Games in Barcelona.