Poppy Delevingne looks sultry with Prince Constantine Alexios of Greece

Poppy Delevingne looked sultry as she stepped out with her younger beau Prince Constantine Alexios of Greece last night.

The gorgeous couple was spotted heading to luxury Italian designer Alessandra Rich’s Summer Soltice dinner in London.

The model and socialite, 37, has been enjoying a blossoming romance with the prince, 24, since the breakup of her eight-year marriage to businessman James Cook.

Poppy’s slim figure was the center of attention, as the dress hugged every inch of her lean curves.

The sassy number was designed by high-end brand Alessandra Rich and features a sheer lace pattern on the lower half.

The pair were photographed on their way to luxury Italian designer Alessandra Rich’s Summer Soltice dinner in London

The dress was made even more striking by a deep v-neckline and ruffles around the neckline.

She put on a leggy display as the dress’s sheer details reach down to her buttocks.

She paired the provocative number with a pair of black open-toe sandals from Dolce and Gabbana.

The polished calf leather heels feature a ‘DG’ logo appliqué on the back of the heel and are currently priced at £675.

She tied her blond locks away from her face, while her bangs were adorned with a center parting.

For her makeup, she wore purple lipstick with matching eyeshadow and just a touch of mascara.

And perhaps as a cheeky ode to her beau, she rocked an Olympia Le-Tan x Olympia of Greece Dirty Martini cotton handbag, priced at £1650.

Prince Constantine Alexios of Greece looked smart in a navy blue pinstripe suit and sky blue shirt.

The sassy number was designed by high-end brand Alessandra Rich and features a sheer lace pattern on the lower half

For her makeup, she wore purple lipstick with matching eyeshadow and just a touch of mascara

Poppy rocked an Olympia Le-Tan x Olympia of Greece Dirty Martini cotton handbag, priced at £1650

The New York-born prince paired his outfit with a pair of smart black shoes.

The lovers seemed to be absorbed in each other’s company as they exited their vehicle and entered the venue.

Constantine, who was once Europe’s most eligible royal bachelor, is the eldest son and second child of Crown Prince Pavlos and Crown Princess Marie-Chantal of Greece.

He is also the grandson of the late King Constantine II of Greece, who was a cousin of King Charles and one of Prince William’s five godparents. He passed away last month at the age of 82.

He remains close to the royal family and is said to be William’s godson.

Prince Constantine is the eldest son and second child of Crown Prince Pavlos and Crown Princess Marie-Chantal of Greece

He is also the grandson of the late King Constantine II of Greece, who was a cousin of King Charles (pictured)

The lovers seemed to be absorbed in each other’s company as they exited their vehicle and entered the venue

The model and socialite has enjoyed a blossoming romance with the prince since the breakup of her eight-year marriage to businessman James Cook.

Despite the 12-year age difference between Poppy and the Prince – known to his friends as Tino – they are believed to have enjoyed each other’s company for some time.

Poppy, the older sister of former model Cara Delevingne, is rumored to have split from 43-year-old James early last year.

Rumors circulated about the state of their marriage when he resigned in January as director of her company, Poppy Delevingne Limited, the company that accounts for her “photographic activities.”

Poppy and James, who works for his family’s aerospace company, tied the knot in 2014 at a church ceremony in Knightsbridge, with sisters Cara and Chloe among her many bridesmaids.