Nina Agdal and boyfriend Jack Brinkley-Cook enjoy a romantic picnic on the beach 

Nina Agdal and boyfriend Jack Brinkley-Cook pack on the PDA as they celebrate their 3-year anniversary with a romantic picnic on the beach

 Nina Adgal  and her boyfriend Jack Brinkley-Cook celebrated three years together on Thursday. 

The model, 27, and Jack, 24, headed to the beach for a romantic picnic to mark the milestone.

Nina took to Instagram to share a slew of snaps of the couple packing on the PDA during their evening date. 

Smitten: Nina Adgal and her boyfriend Jack Brinkley-Cook celebrated three years together on Thursday

The fashionista cut a chic figure in a blue pinstripe shirt and denim shorts, while Jack opted for double denim. 

In one photo, the lovebirds enjoyed a kiss as they relaxed with their glasses of wine in hand.  

Nina captioned the shot: ‘3 years later. Still on a beach. Still drinking wine. Still cracking jokes no one else would find funny’ 

Raising a glass: The model, 27, and Jack, 24, headed to the beach for a romantic picnic to mark the milestone

Raising a glass: The model, 27, and Jack, 24, headed to the beach for a romantic picnic to mark the milestone

Nina has been dating Christie’s son Jack since 2017, not long after her split from Leonardo DiCaprio.

But Nina actually knew Christie before Jack, after the pair modelled for the Sports Illustrated Swimsuit Issue.

‘They get along great,’ Jack told the New York Post earlier this year.

Scenic: The couple first enjoyed a romantic picnic in a picturesque rose garden

Scenic: The couple first enjoyed a romantic picnic in a picturesque rose garden 

Speaking of Nina, Jack told the publication: ‘I thought she was very beautiful and then when I got to know her, she is as incredibly nice and cool, as well.’ 

With no prior modelling experience, Agdal managed to sign with Elite Models Copenhagen after being discovered on the street in her hometown of Hillerod, Denmark.

After graduating from high school, she moved to the United States and modelled for several different companies including Billabong and Victoria’s Secret before landing her first Sports Illustrated swimsuit issue spot in 2012.

Happily in love: Nina litters her Instagram with loved-up snaps of the pair

Happily in love: Nina litters her Instagram with loved-up snaps of the pair