JON & KATE MAJOR SHOCKER

Jon Gosselin signed a secret handwritten deal memo with ex-reporter Kate Major.

RadarOnline.com reports the secret, hand-written contract with former reporter Kate Major validates her claim that she was hired as his personal assistant, would be paid a percentage of his "accounts" and to not talk about their relationship.

A source says that this crude document could be a legal linchpin in Gosselin’s ongoing legal battles – especially with Major being deposed to testify in the TLC vs Gosselin breach of contract war.

After a whirlwind romance (i.e. photo-shoot) Jon denied any involvement after Major quit her job over a "conflict of interest" .between her new lover and remaining an "objective reporter".

According to Radar, the contract was written during the weekend the couple made headlines when for a brief shining moment Kate would replace Hailey Glassman as the Hawaiian Eye For the Ladies’ new paramour as Kate 2.0— briefly relegating Gosselin’s wife and costar of JK8 to Kate Prime.

CLICK HERE to see the hastily scribbled contract.