Ready for a new chapter in the ongoing battle between Hugh Hefner's ex-girlfriends, former Girls Next Door stars Kendra Wilkinson and Holly Madison? On Thursday, Wilkinson explained what prompted her to tweet earlier in the day that Madison was just "embarrassed" that she did "nasty shit" and that she was "the clean up girl" in the bedroom (and not like a maid). The short answer is simply that she's mad at her.

Kendra Wilkinson's Twitter avi tells us she's wacky and she shaves her pits.

After Holly Madison gave an interview with People about her time in the mansion, saying, "It was a place where manipulation was used to keep everyone scrambling to keep her spot in the house," Wilkinson responded on Twitter with a few since-deleted messages. Including this one:

That bitch is in fear now knowing so many of us saw her doing some nasty shit. She's embarrassed and in shame. She was the clean up girl

She's since deleted the tweets and apologized to her followers, but now she's clarified that she's not sorry for feeling the need to respond in general (which included slamming Madison with the line, "She wasn't in fear with that dick in her ass for a paycheck.").