Paris Hilton took a nasty tumble while in Prague with boyfriend Benji Madden. The loved up couple, who are in the capital for Sunday night’s Good Charlotte concert at the Congress Center, left their hotel to have lunch in Staromestka Square. Upon leaving the restaurant, they were mobbed by fans and photographers, causing Paris to fall to the ground. Luckily Benji was at hand to help the heiress to her feet and the couple managed to escape the crowd and get back to their waiting car.

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WENN

Paris Hilton likes a good prank, but her relationship with Good Charlotte’s Benji Madden is “no hoax.”

When it comes to her new and seemingly intense romance with Madden, Hilton, who took joy pulling a recent stunt with a faux shaman for Ashton Kutcher’s new E! show Pop Fiction, says it’s totally real. “We’re really happy … I feel very safe and very secure,” Hilton told Ryan Seacrest during his KIIS-FM radio show Friday.

As for the prank show, she added, “It shows how you can’t really believe what you see.”

Hilton also revealed the origin of the couple’s matching initial jewelry, telling Seacrest the baubles were “a very special present I got.”

Since stunts and a whirlwind relationship don’t keep her busy enough, Thursday she announced a new reality show collaboration with MTV which puts 20 contestants to the test of being her new best friend.

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Paris Hilton and Benji Madden arrive at SHU sushi restaurant holding hands in L.A., yesterday.

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WENN