Lottie Moss puts on a leggy display in a thigh-split black satin gown at app launch

She’s never shied away from amping up the glamour.

And Lottie Moss put on an extremely leggy display in a thigh-split black satin gown as she attended the launch of the iPlaysafe.App in London on Wednesday alongside a host of other stars including Montana Brown and Vas J Morgan. 

The model, 23, amped up the glamour in a revealing black dress with platform heels as she arrived for the unveiling of the sexual health platform.

Lottie stunned in the revealing black silk dress with a precariously high split that highlighted every inch of her slender pins.

The half-sister of fashion icon Kate Moss sported her blonde tresses in a poker straight style that framed her pretty features.

Lottie completed her look with towering silver sparkling platform heels as she posed at the launch. 

Glammed up: Lottie stunned in the revealing black silk dress with a precariously high split that highlighted every inch of her slender pins

Friendly: Ahead of the launch party, Lottie posed up a storm with Vas J Morgan, who cut a dapper figure in a grey suit

Cheeky! Putting on a playful display at the event, Lottie enjoyed a naughty kiss with actress Laura Pradelska

Standing out: Lottie completed her look with towering silver sparkling platform heels as she made her entrance for the launch

Montana Brown once again cut a stylish figure in a simple grey checked blazer and leather leggings as she attended the launch.

The former Love Island star, 26, opted for the casual look as she attended the unveiling of the sexual health platform.

Montana highlighted her svelte physique in the simple grey jacket and a black blouse which she teamed with the form-fitting leggings.

Chic: Montana Brown once again cut a stylish figure in a simple grey checked blazer and leather leggings as she attended the launch

Simple: The former Love Island star, 26, opted for the casual look as she attended the unveiling of the sexual health platform

Pose it up: After arriving at the launch, Montana posed with model Lottie in their stylish looks

Happy: She also beamed alongside pal Vas at the fun-filled party

Looking good! Montana and Vas also posed for a stylish snap with Lottie at the launch party for the sexual health app

Pose it up! At the event Montana was seen posing alongside singer Nadine Hermez, who opted for an oversized leather blazer and a cropped Fendi top

The reality TV star teamed her look with Converse trainers as she posed up a storm with guests including Vas J Morgan and Georgia Di Mattos. 

iPlaySafe.App is the first such application that offers users the chance to take an at-home STI test and then securely share their verified status with potential sexual partners. 

Lottie recently confirmed her romance with The Vamps star Tristan Evans, 26, as they made their first public appearance together. 

Vamping it up! Sugababes star Mutya Buena put on a leggy display in a revealing black mini dress and a matching blazer

Dance it out! Both Mutya and Vas showed off their hilarious dance skills at the event

It was revealed at the end of July that Lottie and Tristan were an item, after they were spotted getting up close and personal in Notting Hill two weeks earlier, before he spent the next evening cooking for her during a cosy night in together.

Edgier than her usual type, Lottie has previously dated Made In Chelsea boys Alex in 2016 and Sam Prince, 24.  

Last year Lottie came out as pansexual, telling her Instagram followers: ‘I’m pansexual so I don’t really mind… any gender. It kinda changes every day as well. It depends on who I meet.’

A pansexual person is attracted to someone or falls in love with them regardless of their biological sex or gender identity.

Important: iPlaySafe.App is an application that offers users the chance to take an at-home STI test and then share their status (Georgia Di Mattos, Vas J Morgan and Bianca Dunne pictured)