Drake & Serena Williams caught making out

Drake and Serena Williams were caught  making out at dinner last night,after Serena Won the WTA tournament in Cincinnati, which Drake attended.According to TMZ,the two had a private room in the back of the eatery -- where they couldn't keep their hands and lips off of each other ... while several patrons watched.  People inside the restaurant tell us the two were joined by 6 other people ...and at one point ordered a round of tequila shots for the table.
There have been rumors about the two hookin' up for months -- ever since Drake was spotted cheering for Serena at Wimbledon..

Drake and Serena hooked up briefly years ago before he dumped her for Rihanna.