Two of Tiger Wood’s ex-mistresses are reportedly embroiled in a bitter cat-fight — with one reporting the other to cops over an alleged death threat, TMZ reported.

Adult film actress Devon James told officers from the Los Angeles Police Department that fellow porn star Joslyn James sent a hate-filled email to her manager.

“Trust me I will swear to u kill over this. Oh yeah and wait to u c wat ur prize has comming! Joslyn should b scared,” Devon allegedly wrote.

The feud apparently stems from when the two busty actresses appeared in a Tiger Woods porn spoof.

TMZ said Devon James boasted in her email about her performance in the steamy flick, saying her rival became jealous when she was complimented by the film crew.

“No wonder Tiger dummpppped her ass,” she allegedly singed off in the email.

The LAPD is investigating the threat, the entertainment website added.

Devon James alleged in June that Woods, who was divorced by wife Elin Nordegren after admitting to a string of affairs, was the father of her nine-year-old son.

She filed a claim for the golf superstar to submit to a DNA test but the paternity case was thrown out by a Florida court in August.

Joslyn James also claimed to have had a three-year fling with Woods.