Talk about a hot way to spend Thanksgiving.

Cameron Diaz and her Yankees beau Alex Rodriguez celebrated the holiday weekend with a sexy trip to Mexico.

The two were spotted showing off their beach bods as they took dips in the water.

After getting cozy over the summer, the two cooled things off in October -- but reunited over dinner at a West Hollywood private members' club Nov. 17.

"They looked super couple-y," an insider recently told Us Weekly. "Cameron was holding his hand and nuzzling him."

Friends say the reconciliation shouldn't come as a surprise.

Says a source, "They break up and get back together all the time."