06/14/2010 05:12 am ET Updated May 25, 2011

A-Rod & Cameron Diaz Dating? Alex Rodriguez Relationship Rumors Heat Up

A-Rod and Cameron Diaz are becoming quite close, according to the New York Post. The paper reports that the Yankees slugger and the blonde actress "have had a series of secret dates" since flirting at a Super Bowl party.

While Life & Style is reportedly claiming that the pair left the February party together, the Post writes that "their relationship is casual."

In January, A-Rod was linked with 25-year-old Elaine Spottswood following his split with actress Kate Hudson a month earlier. Later that month he was photographed on a boat with a mysterious blonde.

UPDATE: A Life & Style press release quotes a source saying A-Rod and Diaz "were all over each other" at the CAA Super Bowl Party:

Cameron Diaz and Alex Rodriguez raised eyebrows when they flirted at the Creative Artists Agency Super Bowl party in Miami and now their relationship has developed into much more, an insider close to the New York Yankees slugger tells Life & Style. "A-Rod's with Cameron," the insider reveals to Life & Style. "They've been keeping it quiet, but they're totally together."

When the photographers weren't around, "they were all over each other at the CAA party," says an onlooker. "Cameron had her hands all over Alex's back, and they were dancing together. They also left the party together that night." As long as they're enjoying themselves, Cam and her man are in no rush to acknowledge their relationship. "Alex recently arranged to fly Cameron to Miami," a second insider tells Life & Style. "He used to fly Kate Hudson there all the time, and no one knew they were dating for a long while. Alex is very discreet."

For more on A-Rod and Cameron's secret hookups, pick up the new issue of Life & Style, on newsstands now!