I hesitated posting this, because it can be taken the wrong way. If a girl says clearly NO! that means no and you have to stop. But this is what happend when I was out and kissed a girl:
After only 10 minutes the girl said to me:"I am NOT gonna sleep with you, maybe you should go find another girl.". Instead of panicking or leaving her, I just stayed cool and said:"Oh, then we have a problem, because I like you, but I also like sex.". Then I moved her to another part of the venue. (It's important to keep the leading frame.). Then we talked some more and she came up again with some non-excuses why not to have sex with me. She told me she was a virgin. To most her excuses I said: "I don't care, I don't judge". We were seated on a bench, joking and having a good vibe. Then I stood up, picked her up by her hands and told her: "Let's Go". She was compliant. I took her home and in my room there was no LMR whatsoever.
Thought this was worth sharing. If a girls say: I am not having sex, could be a shit test or could mean: I am not having sex yet.