Bret Lockett

*Kim Kardashian has reportedly sent NFL player Bret Lockett a letter demanding that he retract allegations that they had an affair, and refrain from making any new such claims – or else a lawsuit will be filed.

Bret Lockett of the New England Patriots went on TMZ Live Wednesday and insisted he did indeed have an online and physical relationship with Kim this year, at the same time she was dating now-fiance Kris Humphries.

In the letter, Kim’s lawyer, Michael Kump, says, “To put it very plainly and clearly, and as Mr. Lockett knows, there is not now, and never has been such a relationship,” adding, “Ms. Kardashian does not know and has never even met Mr. Lockett.”

Lockett told TMZ he has physical evidence proving the relationship, but he would not provide specifics.