The pair, who first gave way to romance rumours after they were photographed getting cozy during a vacation in St Barts earlier this year, stepped out for a shopping trip in the town as they were pictured walking together, reported Ace Showbiz.
Kendall, 20, was seen wearing a denim jacket and matching pants complete with black boots. She appeared to talk to the 22-year-old British singer, who walked behind her wearing a yellow T-shirt, black skinny pants and ankle boots.
Last month, Kendall was linked to Lakers player Jordan Clarkson after they hung out together at celebrity hot spot The Nice Guy in West Hollywood.