SUBREDDIT: r/offmychest
TITLE: First kiss... Last kiss? Your choice
POST: I hope you say it's ok. 
We had our first kiss last night, and I'm fluttering with the bubbly butterflies. But I still haven't told you that I'm in a polyamorous relationship with someone else. I've already told them about you. Now I have to tell you. And I have to wait three days until I see you again!! I can't focus on enjoying the night we had, or my anatomy test tomorrow. Instead I'm worrying that I should have told you already, and that you'll be hurt. That you won't be ok with the idea, and it'll be just have been one brief flame of amazing, and gone.

Honestly, if I had to choose you or my s.o, I'd might have choosen you. If it were that simple. It's not. I know my time with you is short, regardless. I won't leave them for you. So you need to be ok with them. They won't affect us at all. You will meet them next week, actually, but not again. And it's really irrelevant to you, other than that I need to be honest and let you know. Just... please be ok with it!? I desperately want this time with you. I've never had a normal relationship, and you are just that.
TL;DR: 
I hope I didn't wait too long to tell the guy I just had my first kiss with that I'm in a polyamorous relationship with someone else