Drake, Serena Williams spotted kissing

CINCINNATI, Aug. 24 (UPI) -- Drake and rumored girlfriend Serena Williams were spotted kissing Sunday.

The 28-year-old Canadian rapper and 33-year-old American tennis player were seen at Sotto restaurant in Cincinnati, Ohio. The pair celebrated over dinner hours after Williams won the Women's Tennis Association tournament.

Drake and the professional athlete weren't shy as they canoodled in a private room toward the back of the establishment. The couple were later joined by six friends, and onlookers told TMZ the pair ordered tequila shots for the table.

The rapper and Williams have been friends for years, and re-sparked dating rumors after Drake was spotted cheering the tennis player on at Wimbledon in July. Sources told E! News the couple are "both going with the flow for the time being."

Drake released his fourth mixtape, If You're Reading This It's Too Late, in February, and is expected to debut new album Views from the 6 this year. Williams is ranked No. 1 in women's singles tennis, and will compete in the U.S. Open next week.