Sad news from the Diddy camp ... the rap mogul says he's 100%, positively NOT having sexual relations with model Kate Upton ... despite the fact it would be totally awesome if true.
Reports surfaced this morning that Diddy and Double-Diddy were spotted making out at a NY restaurant last week ... and the Internet instantly exploded with jealousy.
But Diddy says it just ain't true ... tweeting, "Attn 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!"
A rep for Kate also tells TMZ ... Kate and Diddy "barely know each other" and they are definitely not dating.
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