This is the tenth in a series of articles by The Underwear Expert...

River Viiperi has a good thing going. He’s young, attractive, popular and he's dating a rich chick. The 21-year-old underwear and fashion model was born on Ibiza and has already done more than many guys do in their entire lives. In just the past two years he’s modeled for H&M, Armani Exchange, Polo Ralph Lauren and Tommy Hilfiger. Add that to his athleticism and love of martial arts and you can see why Ms. Hilton is so attached.

We collected the five hottest photos of the well-traveled youngster, showing Viiperi in American Eagle briefs, Jockey underwear and more. Have a look at our picks and take solace in the knowledge that nothing lasts forever, especially not Paris Hilton’s relationships. River Viiperi still has plenty of time to realign his interests and find his way back to you...

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