Summer Fling or Real Thing?

Are these summer couples oh-so-hot – or about to fizzle? Vote now!

OLIVIA & AARON

Two months after her breakup from actor Joel Kinnaman, her boyfriend of two years, Munn bounced back with the Green Bay Packers quarterback. And though both are very much in the spotlight, they've managed to stay Munn – er, mum – on the relationship.