Apologies to Cardiffdaffs for my take on this.
Apparently Dorries was wearing a hood but , in the throes of ecstasy, she pulled it off so that she could see her beloved Boris better.
Unfortunately, the blow up Mr Blobby
she'd been enjoying her fantasy with, couldn't supply any further soiling to the baggy y fronts she'd bribed Boris 's house cleaner to supply her with.
She took solace in the fact that Blobby at least shared Bojo's physical attributes, despite the fact that Blobby was Bojo's intellectial superior.
Just my take.