Masturbating with a what?

The Smoking Gun reports a rather odd case (well that's what they do!):

'The topless Illinois woman arrested on a gun charge after cops found her masturbating in a Chrysler van outside a Red Roof Inn has pleaded guilty to a weapons count, according to court records.

...

Myers, arrested in November for possession of a 9mm handgun without a state-issued Firearm Owners Identification card, admitted to masturbating in the vehicle, where cops discovered “adult items that were used for self-pleasuring.” Myers, who was not charged for the topless auto eroticism, was apparently staying at the hotel with her children, and had repaired to the van for her solo session.'

On first reading I thought the article said she had been masturbating with the 9mm handgun, now I am not so sure...