New couple alert? Jessica Biel and Derek Jeter spent the weekend after Thanksgiving cozying up all over Las Vegas.

At Wynn Las Vegas's Tryst nightclub Saturday night, the pair snuck kisses at the VIP table they shared with Jeter's New York Yankees teammates Alex Rodriguez and Jason Giambi.

The next evening, Jeter, 32, and Biel, 24, played blackjack at Palms Casino Resort's Mint Lounge before dinner with two friends at the Palms' Nine restaurant.

They capped off the night with a visit to Hard Rock's Body English nightclub, where they snuggled, traded pecks on the cheek and were in general "very lovey dovey" in their VIP booth, says a clubgoer.

The duo have been spotted out before: At Social Hollywood on Nov. 15, "They looked like they were on a date," according to one onlooker. But asked later if he was single, Jeter told PEOPLE, "Hell, yes!"

A rep for Jeter had no comment; Biel's rep did not return calls for comment.