Matthew McConaughey, Channing Tatum, Alex Pettyfer, and Matt Bomer all went shirtless and showed off their sexy six-packs yesterday afternoon as they shot new scenes for their male-stripper movie Magic Mike in Tampa, FL. Channing, Alex, and Matt, who were clad in swim trunks, had the company of a bikini-clad Olivia Munn on the boat that served as the set for the day. Meanwhile, Matthew sunned himself solo on the sand in a cowboy hat and shorts. The upcoming film is loosely based on Channing's own past as an exotic dancer and has also shot in Miami and LA over the past couple of months. Matthew has been splitting his time between the project and his role opposite Reese Witherspoon in Mud. That movie is filming in the South, as well, but Matthew and Reese made a pit stop in their hometown of LA last week for a double date with their significant others. Reese and Jim Toth hosted a Livestrong fundraiser that Matthew and his partner Camila Alves also attended on Thursday night.