Chrissy Teigen pairs tiny hot pants with a sheer blouse as she and husband John Legend celebrate his 45th birthday at The Polo Bar in New York

Chrissy Teigen and husband John Legend stepped out in style on Thursday as they celebrated the musician’s 45th birthday at The Polo Bar in New York.

The model, 38, put on a leggy show in tiny black shorts and fishnet stockings for a night out.

The mother of four – who was spotted in Washington Square Park with her kids and John earlier in the day – paired the sizzling ensemble with a plunging semi-sheer black blouse and added height to her frame with black heels.

She completed the look with a gold purse and wore her brunette locks in loose waves.

Meanwhile, the All of Me crooner matched his wife in a black outfit, wearing a kimono-style blazer with a silk button-up and black trousers.

John rocked his neatly trimmed beard to celebrate his birthday.

Chrissy wore glamorous makeup for the occasion, including winged eyeliner, pink lipstick and bronzer on her cheeks.

The loved-up couple held hands as they braved a bit of drizzle on their way out.

The duo enjoyed a night out without their kids after spending the afternoon playing with drones with their two eldest children Luna, seven, Miles, five, in Washington Square Park.

As the family stepped out to celebrate the superstar turning another year older, John appeared to be having a blast with his little ones, who were bundled up in padded black jackets and hats.

Teigen was every bit the doting wife as she stood next to her husband and walked arm in arm with him down the sidewalk to the public park in Lower Manhattan.

Between throwing a football around and flying drones, the cookbook author was spotted laughing.

For their relaxing outing, the mother of four wore an off-the-shoulder puffer jacket, leggings and $1,750 Prada boots.

The birthday boy looked warm in a beige puffer jacket with an off-white turtleneck, matching trousers and white sneakers.

Luna looked absolutely adorable in a graphic Moschino T-shirt with a teddy bear on it and her curly brown hair in pigtails.

Meanwhile, her brother wore a hoodie with cars on it and pants with racing stripes on the side.

The couple also share a son named Wren Alexander, born June 19, and daughter Esti, 11 months.

The model and Legend first met in 2006 while working on a music video shoot, and they subsequently got engaged in 2011.

The happy couple waited two years before holding a wedding ceremony in Italy.

Teigen and her husband started their family with the birth of their daughter Luna, seven, in April 2016, and welcomed Miles two years later.

The couple planned to welcome a third child in 2020, although the author had to have an abortion to save her life.

The two welcomed Esti last January and surprised many of their fans with the arrival of Wren via surrogate five months later.