No sexy shenanigans here! Both Sean 'Diddy' Combs and Kate Upton took to Twitter on Wednesday, April 10, to deny rumors that they are Hollywood's latest 'it' couple after reports of their steamy makeout sessions began to circulate.

'Attention all Media. I don't even know Kate Upton personally!' the 43-year-old rapper and mogul wrote. 'I'm not dating her! What's being reported is not true. END of story!'

Upton, 20, similarly shot down reports that she and Diddy are anything more than friends.

'Really??? Not at all true...' she tweeted in reference to a tweet from New York magazine's The Cut blog: '@KateUpton and @IamDiddy seen sucking face and dining out!'

According to the New York Daily News' Confidenti@l gossip column, the pair was spotted locking lips during a fun night out at club LIV in Miami Beach. 'They were kissing, they weren't hiding it,' an eyewitness told the paper. The source added that the pair partied all night in the VIP section of the club.

An insider tells Us, however, that 'they weren't even there at the same time.'

Upton previously dated Detroit Tigers pitcher Justin Verlander, 30, but the pair split prior to Valentine's Day, with the buxom blonde telling FOX2 Detroit that she spent her Valentine's day in Melbourne, Fla.

Diddy.