Missed this post earlier. Yes, I'm single. She says she's single. No moral objection on my part to casual sex, lol! Practical objection. Groink said it all imo, don't shit where you live. The potential downside here far outweighs the benefit.
Best to look a little further afield for sex partners than a 30 second walk. Right or wrong, that's my policy. There's no question that this will go no further. The issue is how to best handle telling her that there's no way.
Good idea to trust your instincts. I'm finally learning to do that more often..NO- ALL THE TIME!!!
Try telling her your involved with somebody.. like maybe a long distance relationship? However, I dunno how much you've told her or how much she already knows about you..
Anyway, if you can pull that story off, she will probably back off, respect you more, and will be less likely to feel rejected. I could be wrong..
psycho+ feeling rejected= bad combo. Good luck.