Lottie Moss caused temperatures to soar when she was spotted leaving London’s famous hot spot Chiltern Firehouse at 4am on Sunday.
The 25-year-old hazy-eyed model flaunted her figure in a sheer black dress while accompanied by elderly US attorney Christian Leathley.
Lottie’s dress left almost nothing to the imagination as she was only wearing skimpy lingerie underneath.
Kate’s younger sister, 49, completed the look with a black leather jacket and rocked her stuff in a pair of matching heels that hugged her toned legs.
She sported a radiant makeup palette with her long blonde locks loose while carrying a black leather handbag.
Saucy: Lottie Moss caused temperatures to soar when she was spotted leaving London’s famous hot spot Chiltern Firehouse at 4am on Sunday
Romantic rendezvous? The model, 25, flaunted her figure in a sheer black dress while accompanied by elderly American businessman Christian Leathley
She also showed off her cheek tattoo, which reads “Lover,” after getting the ink on her face during a wild night out in December.
Lottie’s male companion looked good in a tan blazer worn over a white shirt and paired with dark trousers.
Meanwhile, Christian, who is a partner at global law firm Herbert Smith Freehills, sported salt and pepper locks and an unshaven face as he boarded a cab with the OnlyFans star.
MailOnline has reached out to representatives for Lottie and Christian for comment.
According to his Linkedin profile, Christian, based in New York, has particular expertise in international arbitration and public international law – with 20 years of experience.
Their latest gig comes when Lottie stars on Celebs Go Dating alongside Love Island host Vanessa Feltz, 61, and Chloe Burrows, 27.
And dating agent Anna Williamson, 41, talked about how Kate Moss, 49, could “learn some disturbing things” about her younger sister Lottie, should she tune into the show.
However, supermodel Kate is unlikely to watch the show Lottie previously revealed that she’sdoesn’t really know her older half-sister and their relationship is so distant that “she’s not answering my texts.”
Speak to told The mirroranna said: “I’d be so intrigued if Kate Moss started watching this series. I hope she does. I think she’ll find out a lot of interesting and maybe disturbing things about her sister.”
Late night: The couple hopped in a cab with friends after their late-night party session
Blast: Lottie’s dress left almost nothing to the imagination and she wore skimpy lingerie underneath
Incredibly, she showed off her curves as the dress hugged every inch of her figure
Cheeky: Her thong was completely exposed when she got into her cab
Hot stuff: Kate’s younger sister, 49, completed the look with a black leather jacket
Quiet: Lottie seemed to want to leave late at night with the quiet man
Close: The pair seemed comfortable in each other’s company, sitting close together in the back of the taxi
Anna added, “I’d love to maybe be an olive branch between the two sisters, who I believe it’s no secret that they aren’t that close.”
“I would love for Kate to take this opportunity to reach out to her little sister and give her a much-needed hug, but I think she needs it.”
In a self-penned essay in March, Lottie said that while her sister provided her with a useful stepping stone, she was determined to earn her own money and used her earnings to pay for private tuition at St Bede’s School in Redhill.
She also responded to the backlash for a series of tweets she posted in response to Lily Allen, the daughter of actor Keith Allen and film producer Alison Owen, launching a defense of celebrity children raised in privileged families.
Busty: Her lingerie showed off her ample assets
Quick Exit: She wrapped herself in the jacket as she made her late night exit
Blonde and beautiful: She wore a radiant makeup palette with her long blonde locks loose while carrying a black leather handbag
Strut: She flaunted her stuff in a pair of matching heels that hugged her toned leg
Tattoo: She also showed off her cheek tattoo, which reads “Lover,” after getting the ink on her face during a wild night out in December
There they go: Lottie seemed to go to great lengths to keep her identity a secret
Lottie signed up News weekI think a common misconception is that because Kate, who is 24 years older than me, is rich and famous, so was my family. But that was clearly her money and her fame, not ours.
“I knew my sister Kate was famous and growing up I idolized her because I thought she was the coolest.
“I never got much love or attention from her though, which has always upset me, especially since people have raised her with me for as long as I can remember.
“How do I tell people I don’t know her and she won’t respond to my texts? I find the whole “fake baby” concept really weird.
“There are so many people in the world who have had clear advantages in their careers because of who they know or who someone in their family is, not just famous people.”
Late night: The pair then headed to friends in their taxi for a late night soiree in West London
Smart: Christian looked good in a tan blazer worn over a white shirt and paired with dark trousers
Next: He followed the OnlyFans star into the posh house
Lottie said her childhood was difficult at times because her father Peter went to rehab for depression for several months after her mother’s store collapsed.
At age 13, she secured a modeling contract after being a bridesmaid at Kate’s wedding to her now ex-husband Jamie Hince, but said it was far from the “dream” she thought it would be.
Lottie later admitted that she had indulged in drugs and alcohol in her late teens and “completely lost myself” by the age of 18, when she was told by officers she needed a personal trainer and a 23-inch waist.
New venture: Lottie to star on Celebs Go Dating alongside Love Island host Vanessa Feltz, 61, and Chloe Burrows, 27
Sisters: Dating agent Anna Williamson, 41, shared how Kate Moss (pictured in 2014), 49, “could learn some disturbing things” about her younger sister Lottie, should she tune into the show
Entering the social scene, Lottie said she had gained a bit of a reputation as a “party girl,” but never experienced the “darkness and loneliness” that came with it.
High-fashion catwalks have since been replaced by racy online content and the potentially lucrative website OnlyFans, where Lottie claims she has finally stepped out of her sister’s long shadow.
MailOnline reached out to Kate’s representatives for comment at the time.