Heather Morris is showing off her sexy body in the pages of Esquire magazine's May issue. The 24-year-old Glee star also filmed a dance video for the magazine's Top 50 songs of 2011 piece. We're diggin' that plunging black swimsuit!

In the insanely sexy video, Heather dances to a combination of songs from Raphael Saadiq, Deadmau5 and The Strokes.

The blonde cutie, who starred alongside Britney Spears in a Glee tribute episode, is also giving out advice to guys. Morris tells the mag:

    "You don't want to be too cool. But you don't want to be too dorky. Still, I find it so much better to see a guy at a club being a dork, and having fun, than trying to be sexy."

When it comes to what she finds offensive on the dance floor, she adds:

    "I can't stand it when someone comes up behind a girl and grabs her hips and tries to grind with her. It's offensive. Why would you do that to me?"

For those guys who can't dance, Heather has a tip. Read what it is ... after the jump.