Tbh, if you really want to capture what Catullus was saying, I'd stick with something like that.
That line has been described as, "One of the filthiest expressions ever written in Latin — or in any other language, for that matter."
Wikipedia has an alternative translation, the wonderfully smooth and romantic, "I will sodomize you and face-**** you."
Here is a list of Catullus poems with notional titles so you can scroll through and pick those which appeal to your feral side.
And underneath is a translation of the lot of them - should keep you occupied ferra bit
A quick search for the word 'whore' flags up poems 6, 10, 99 and 110, for example.
EDIT: Oh, and you're actually not doing your EPQ a week before the deadline!
You're part of a rare breed.
But it will
definitely pay off.
Those in my sixth form fell into two camps: the early ones and the late ones - and the divide between the marks was pretty astonishing.
(I know this because my gakaerafjasodipfjpao of a school published everyone's mark on their stupid website, without even letting us know that that they'd put them there - or even what our own scores actually were!).