Roller Girl is one gorgeous woman now!

Heather Graham shows off her bikini bod on the June cover of Maxim magazine -- and the 43-year-old looks incredible.

Sporting two different swimsuits, the "Hangover III" star opens up about her role in the upcoming flick, her real feelings about Las Vegas and the memento she took from the "Boogie Nights" set.

On returning for "The Hangover III" ...
"My Hangover character isn't a stripper anymore."

On visiting Las Vegas ...
"I've definitely gone and partied, but I kind of hate Vegas, to be honest. It's kind of disturbing."

On her "Boogie Nights" trophy ...
"I have a pair of rollerskates from Boogie Nights at my house."

You can see more from Heather when the issue hits newsstands May 21. Check out more photos from the sexy shoot above, plus keep clicking for a Now & Then of the entire "Boogie Nights" cast!