Sports Illustrated Swimsuit cover model Kate Upton smashed rumors surrounding a new romance with music and rap mogul Sean P.Diddy Combs.

Upton seemed to be pissed off that reports indicated that she was dating the rapper. On Wednesday, when a media outlet tweeted that she and Diddy were "seen sucking face and dining out," the model replied and said, "Not true at all."

A source said he spotted couple cuddled up. "They were kissing, they weren't hiding it," according to Confidenti@l.

Enstars reported that the two also "had dinner together" at Gemma restaurant in the Bowery Hotel in New York City on March 25.

The Sports Illustrated cover girl broke up with Detroit Tigers pitcher Justin Verlander in February. On April 5, she tweeted that she was "cuddling with her favorite tiger."

Diddy also denied the romance and said he doesn't even know Upton.

"Attention all Media. I don't even know Kate Upton personally! I'm not dating her ! What's being reported is not true. END of story!" he tweeted on Wednesday.

Diddy also took to Twitter to promote his other rumored girlfriend Cassie Ventura's latest video, Rock-A-Bye-Baby video.

He tweeted several times about Ventura.

Ventura had been rumored to be dating Bad Boy Records executive for years. In August, more rumors swirled after she was spotted topless on a yacht with Diddy while on vacation in Cannes and St. Tropez.

Back in September, Diddy finally confirmed the rumors, tweeting a picture of Cassie with the photo caption, "I'm a very lucky man #knowthat."

He has five children. One of his sons, Justin Combs attends UCLA on a $54,000 football scholarship.

Tags: Kate Upton P. Diddy Cassie