They're well-known animal lovers who've shown off their fashionable pooches over the years.
Paris Hilton, 38, was joined by her sister, Nicky Hilton Rothschild, 35, as the two heiresses walked the red carpet at the Animal Haven 2019 Benefit for the Animals in New York City.
The socialites posed with some fuzzy friends while showing off their striking outfits.
Family affair: Paris Hilton, 38, was joined by her sister, Nicky Hilton Rothschild, 35, as the two heiresses walked the red carpet at the Animal Haven 2019 Benefit for the Animals
Paris was scorching in a scarlet dress adorned with hundreds of little black hearts.
The 5ft8in reality star's modest outfit featured long sleeves and '80s-style padded shoulders, though the nearly floor-length dress featured a slit to show off her finely toned legs.
She added a pair of simple black heels to the look, and had a wide black belt around her midriff that highlighted her trim figure.
The Simple Life star had her blonde locks styled straight, and she pulled her hair behind her ear to display a pair of gleaming jeweled earrings.
Though she's best known as a fan of Chihuahuas and Pomeranians, Paris posed with an adorable gray and white kitten.
Red hot: Paris was scorching in a scarlet dress adorned with hundreds of little black hearts
Retro look: The 5ft8in reality star's modest outfit featured long sleeves and '80s-style padded shoulders, though the nearly floor-length dress featured a slit to show off her finely toned legs
Slimming look: She added a pair of simple black heels to the look, and had a wide black belt around her midriff that highlighted her trim figure
Cute kitty: Though she's best known as a fan of Chihuahuas and Pomeranians, Paris posed with an adorable gray and white kitten
Compared to her sister's sultry look, Nicky went for an angelic white look with a ruffled white dress covered in little red clovers.
The outfit matched her sister's with its long sleeves, though it was more revealing.
The low-cut front highlighted Nicky's cleavage and the shorter dress showed off her slender legs.
Her blonde tresses were done up in a braided crown, and she toted along a cream-colored handbag.
She was supporting the Animal Haven organization, which helps finds homes for abandoned animals and offers behavioral training to increase the likelihood of adoptions.
Brilliant white: Compared to her sister's sultry look, Nicky went for an angelic white look with a ruffled white dress covered in little red clovers
Similar looks: The outfit matched her sister's, with its long sleeves, though hers showed off some cleavage with it's low cut, and the shorter skirt highlighted her trim legs
Lovely locks: Her blonde tresses were done up in a braided crown, and she toted along a cream-colored handbag
Nicky held up a cute long-haired Chihuahua,
