Odd Couple

Hollywood relationships have a tendency to surprise observers. Be it Lost star Doug Hutchison's marriage to a 16-year-old aspiring porn star singer or Jennifer Anniston's new bad boy beau Justin Theroux, some stars have a knack for shocking us. The latest odd couple? Ryan Phillippe and Demi Lovato.

The 36-year-old has been seeing the 18-year-old ex-Disney star for a while. A source claims their hook ups were "hot and heavy," but it "was nothing serious." Ryan, the father of Reese Witherspoon's children Ava and Deacon, became a father for the third time earlier this month when ex-girlfriend Alexis Knapp gave birth to daughter Kai. Ryan and Demi were seeing each other at the time, and apparently Demi only found out when it happened. It was said to have thrown her for a loop.

Do you think this odd couple will last?