What did my partner just do?
So yesterday me (M22) & my gf (F21) were having sex. usually when we do it, we routinely do it in the missionary position and i usually finish and she’s able to have a good time too, but yesterday something unusual happened. As I was thrusting, I was having difficulty finishing – which is not common, since I usually am able to finish with no problem; but yesterday it just wasn’t clicking for some reason and I was thrusting for like 10-15 minutes. Then as I was continuing thrusting, all of a sudden I feel an enormous heavy pressure on my penis – the feeling was so heavy that, it was as if my Penis was being squeezed from all sides. With this enormous pressure on me I was finally at last able to finish & it was one of the best feelings ever. I looked over at my gf and I asked her what the hell just happened? & she just laughed and said “magic”
I’m still confused on what happened even after a day just passed since. Because we've been doing missionary for so long and nothing like this has ever happened. What do you guys think?