This is such a quick one and it's JUST happened to me, but I liked it as I've learned a lot from people like you.
So, I've spoken to this girl online, she blatantly likes me, got her number, flirting is getting sexual via text, she's basically DTF.
I send her a message saying (after she sent me a message about not being able to wait to test my tongue out) "and I thought you were so innocent

"
She responds: "I am innocent". She then follows up with another message one minute after saying; "I don't kiss strangers."
... No smiley face, no 'lol', just deadpan like that. How did I overcome this blatant Shit Test then? Hehe... I replied:
"Sucks to be them then!"
Her next message: "Cheeky. What are your weekend plans?"
BOOM!!!
I love this sh*t!