The Formula 1 driver, 36, was seen heading to his hotel with his bodyguard in tow before Guzman, 27, then made her way inside.
The raven haired model and influencer currently boasts 1.9million Instagram followers, while also managing an account with subscription service OnlyFans.
Born in Los Angeles, Guzman has modelled for affordable online clothing brand Fashion Nova while developing an online following across social media.
She has since set her sights on OnlyFans, where paying subscribers can view exclusive access to photos and videos unavailable on other platforms.
After the party: Lewis Hamilton arrived back at his hotel with OnlyFans model Janet Guzman following the Met Gala afterparty in New York City
Here she is: Janet has 1.9million followers on Instagram and also manages her own OnlyFans account
Lewis donned a black suit for the Gala before he changed into a navy jacket with ‘L’ emblazoned on the back for the afterparty.
He also sported a pair of bright yellow tracksuit bottoms and black shoes and appeared to arrive at the bash with another woman.
Guzman, who joined him in the hotel, donned a black sheer garment that highlighted her incredible figure.
Adding height to her frame with a pair of black heels, her locks were styled into an updo for the evening.
Casual: Lewis donned a black suit for the Gala before he changed into a navy jacket with ‘L’ emblazoned on the back for the afterparty
Arrival: Guzman, who joined him in the hotel, appeared to escorted in by a security guard
Event: Lewis also sported a pair of bright yellow tracksuit bottoms and black shoes and appeared to arrive at the bash with another woman
Stunning: Guzman regularly shares busty selfies with her social media followers
Style: Adding height to her frame with a pair of black heels, her locks were styled into an updo for the evening
Earlier that evening Lewis sported a lace net skirt over his suit as he joined the biggest stars in showbusiness at the Gala.
The sports star looked suave in a slick black suit with shiny black loafers and put a very modern twist on the classic look as he paired black blazer and trousers with a see-through mesh shirt and netted veil skirt.
Proving no detail was missed, he paired the look with small crucifix earrings, a diamond chain and two diamond bracelets.
Other sporting stars joining him on the red carpet included American track and field sprinter Sha’Carri Richardson and Olympic fencer Miles Chamley-Watson.
Bash: Guzman was not seen with him at the after party
That looks familiar: She was seen modelling the same sheer outfit on Instagram earlier that night
Secret: The party Lewis attended after the Gala was at an undisclosed location
Fashion: Guzman sported a long-sleeved top and a silver necklace
Modern twist: Lewis sported a lace net skirt over his suit on Monday as he joined the biggest stars in showbusiness at the Met Gala
The outing comes after the F1 star recently sparked speculation he was ‘growing close’ to stunning model Camila Kendra, 27, as she posted snaps wearing his shirt in his Colorado home.
Camila has shared photos in the F1 ace’s lavish home, to the delight of fans, even wearing a plaid shirt of his in one candid snap.
The Dominican Republic-born beauty recently ended her eight month romance with The Bachelor star Tyler Cameron, with a source telling Us Weekly ‘Camila broke off the relationship, it was time for her to refocus on her own very lucrative career.
Speculation: The outing comes after the F1 star recently sparked speculation he was ‘growing close’ to stunning model Camila Kendra, 27
Lewis also follows the model on Instagram and has been liking her racy photos, however a source told The Sun that Lewis and Camila are pals, saying: ‘They’ve been friends for a few years — that’s why she’s staying at his house and wearing his shirt.’
MailOnline contacted representatives for the pair for comment at the time.
Lewis’ most famous ex is Nicole Scherzinger, who he dated on-off for eight years until 2015, but the racing driver has been linked to a strong of women since ending their relationship.
Then: Lewis famously dated Nicole Scherzinger for eight years on and off until 2015 (pictured in 2014)
Now: Nicole is now in a relationship with rugby hunk Thom Evans after they met on Celebrity X Factor