Krista Ayne, Alyssa Lipsky Fighting Over Kid Rock

He may unsuccessfully and frequently attempt to fight Tommy Lee, but Kid Rock is apparently such a catch that two new women are smitten with him.

Penthouse Pet Krista Ayne and model Alyssa Lipsky met the rocker when they posed with him for the cover of the current Rolling Stone magazine.

During the shoot, Rock made sure to get cell numbers and e-mail addresses from both black-lingerie-clad babes, according to the New York Daily News.

Lipsky, a Realtor at Conquest Advisors, got partially cut from the cover (although her breasts remain visible). Ironically, she was axed again Sunday when Rock chose to bring Ayne to the Yankees playoff game instead of her.

Krista Ayne, who used to date Jared Leto and is also pictured in the new issue of Steppin' Out magazine, told publisher Chaunce Hayden that she has a boyfriend but he let her go to the game with Kid Rock.

Alyssa Lipsky then got jealous when a photo of the Penthouse Pet and Kid Rock at the game appeared in the paper, a source told the newspaper.

Krista Ayne (pictured) and Alyssa Lipsky are apparently clamoring for the affections of Kid Rock. Did we miss the part where he became the last man on Earth?

The blond temptress showed up at Rock's performance at the Fillmore Tuesday night and became even more annoyed when she was blocked from the VIP room by his publicist - for good reason: Krista Ayne was inside.

"Ayne said her goodbyes and went home early," says our source. "She didn't realize Lipsky was outside, pissed."

But Lipsky finally got through the velvet ropes, and before you could say, "Rock's ex Pam Anderson just married sebaceous Rick Salomon - what's that about?" she was on Kid Rock's tour bus, headed to his Detroit mansion.

Ever the gentleman, Rock later paid for Alyssa Lipsky to fly back to N.Y.