If you look at a diagram of the vagina and focus on the areas either side of the cervix, you will see little dents (which would probably feel like pockets to your penis when your gf is fully aroused), I believe each one is called a fornix (there are four). They exist because the cervix protrudes into top of the vagina. So when you slid into one of them (probably the anterior or posterior depending on your position, the anterior is known as the A-Spot so it could be that one), it felt good to your gf because you were sliding close to her cervix but not hitting it hard. Good job as that can be very pleasurable when done correctly 🙌🫶☺️✨️

Hey thank you! A legit answer lol i appreciate it

To add onto this, be careful when experimenting here. For my gf, the orgasms are intense and she loves them… but she cries and mumbles "stop". First time I pulled out and she was pissed because it felt great lol We now have a safe word so she can freely mumble "no" or "stop" and we keep going until she says the word. For us, me standing and her laying on her back with her ankles on my shoulders usually gets the spot. "Aim" for her belly button while penetrating while her butt is tilted off the bed. A pillow could help too. , that gets us there

You hit the mythical trapdoor. Check for treasure.