The Smile singer, 23, was spotted kissing and cuddling up to a grey-haired older gentleman on a yacht off the coast of St Barts.
After spending some quality family time with her mother in nearby Jamaica last week, Lily made time for romance as she enjoyed an idyllic day at sea with her new man.
New love: Lily Allen puckers up with her new boyfriend on a yacht off the coast of St Barts
The new couple appeared inseparable as they waited on the beach with their arms wrapped around each other and they waited to board the beach.
Obviously in the first throws of romance, they couldn't keep their hands off each and were frequently spotted kissing onboard the yacht.
After climbing onboard in a yellow sundress over her bikini, tanned Lily enjoys a dip in the ocean before changing into a black playsuit and bright neon bra.
Lily's choice of older man is no surprise - she's frequently dated men older than her.
New year, new man: Lily cuddles up to her mystery man as they prepare to board the yacht
Hold on: Lily hangs off her male companion as they talk to a friend
She split from Chemical Brothers DJ Ed Simons, 38, in January 2008 after a five month relationship.
The end of their relationship came soon after Lily suffered a heart-breaking miscarriage.
Just weeks before meeting Ed, Lily split from record label executive Seb Chew - who was in his mid-Thirties - after a two and a half year relationship.
Lily complained last month how difficult it was to find a boyfriend because of her fame.
Sailing on the sea of love: Lily wraps her legs around her new man as they enjoy a passionate embrace on the yacht
Holiday romance: Lily invites her companion to join her on the bow
She said: 'If I meet someone who is not part of the showbiz industry, I think, "Should I sleep with this person? Are they going to be straight on the phone (to the press)?"
'I guess that's why famous people go out with famous people, but there aren't really any that I fancy.
'I think I like much older men.'
Despite her young age of 23, Lily insists she has grown up a lot over the past two years since becoming famous.
All aboard: Lily enjoys a laugh with her boyfriend and friends as they jet out to the yacht
Centre of attention: Lily messes around for the camera as her friend plays photographer
She said: 'My mates are in a totally different place.
'They are still all into going out and dancing and taking drugs.
'I hang out with much older people, I go for dinners at posh places and talk about art. I’m meeting more interesting people who tax my brain.'
Whether Lily's new man taxes her brain as well as attracts her physically, we'll have to wait and see.
Luxurious: Lily and friends spent the day on this lavish yacht
