I had my first anal orgasm

So I just had my first anal orgasm and it was such an amazing experience that I just had to talk about it.

I 19M have a Gf and she knows I'm bi and I'm really happy with her but I've always wanted a dick in me.

Anyways, I start looking at some porn and think, why not try with my finger?

I went in with one finger because my ass was to tight for another and I think I started hitting my prostate at some point because there was this spot that felt incredibly good.

I started twitching and feeling cum build up in my dick. A bit later I came from my ass and it was the best orgasm I have ever had, even minutes later I felt the ecstasy in my body and I was still trembling.

Honestly I don't know what a real Dick would do to me if a singe finger already felt this good.