<human>: Provide a brief overview of the text.

This is a pretty simple problem, but it's completely foreign territory to me.

* Friends with a girl for 15ish years.  Initially dated briefly (~2mos) in the "middle school" sense of the word.

* Remained friends, sexual tension has started to build in recent years.

* To be perfectly honest, I *really* want to hook up.  It's been a loooooong time, and I am physically attracted to her.  However, I think that if we do, I'll regret it (no idea if she would).  I really don't see a future for us, and I did the casual hookup thing in college and rapidly grew out of it.

* I'm only coming to this realization after we've done a lot of sexting, and therein lies my problem.  I don't think that the plain, honest truth would be well-received, and I don't want to quit being friends.

So
<bot>: How do I (honestly) walk back a lot of sexual tension with a good friend in such a way that I won't hurt her feelings?