Paris Hilton dumped Cristiano Ronaldo for being a "sissy".

The hotel heiress - who was spotted canoodling with the soccer star shortly after splitting from Doug Reinhardt - reportedly called off their romance after deciding Cristiano was too in touch with his feminine side.

A source told the National Enquirer magazine: "She likes her guys to be macho - and as far as she's concerned Ronaldo turned out to be a real sissy.

"She likes her men rugged, it's as simple as that. She thought her friends would laugh at her if she dated a guy who walks around with flowers in her hair."

Paris, 28, was also concerned Cristiano, 24, was overwhelmed by the amount of attention she received during the two evenings they spent together.

The source said: "He was just too uptight for her to find attractive. In the end, Paris realised their relationship simply wasn't clicking. Paris got to know him and realised he's not nearly hot enough."

Earlier this month, Paris and Cristiano spent hours "swapping spit" at Hollywood nightspot MyHouse before driving to her sister Nicky Hilton's nearby home in West Hollywood at 3am.

A grinning Cristiano was photographed leaving the mansion at 5am. He and Paris met up for a second time less than 24 hours later.

Earlier this week, Cristiano claimed he put an end to their short-lived fling because he was too busy to spend time with Paris.

He said: "She was a really cool girl and we had a great time talking. She lives thousands of miles away and is busy, and I am busy in Madrid so I am not sure if we will be able to see each other. I am just making the most of the short summer I get."