First try of posting a question, I hope I'll be clear..

So my boyfriend sometimes fingers me in a very good way. I think maybe it's when he's touching my G spot. Like he has his fingers inside and he's touching something which makes me feel really good really quick.

Each time he does touch this spot, I'm getting very wet and discharge a lot with pleasure and I can feel that I'm going to have an orgasm. But I can't because I also feel like if I let go with my pleasure, this spot he touches can make me pee...

The sensation between pleasure and like I'm going to pee is really thin so I'm like blocking and can't let go to have an orgasm.

Is that normal ? Can I do something about it ?