Her assistant apparently! Hey, there's only so many times they can bring you a tall when you ask for venti, right? JK!
"I'll f–king kill you!"
Then, Britney says, came the battery! And unlike the porn star's usual M.O., her knuckles were not bare!
According to Britney, Jenna used her brass knuckles iPhone 5 case to do some serious damage! Gurl even had to go to the hospital!
If the attachment was really brass, that could turn the novelty phone case into a case of felony assault!
Good thing she wasn't using the iPad! Those knuckles would be huge!
[Image via Instagram.]