Imagine a slow process…
First, She stops letting you enter Her.
Then, She stops letting you touch Her.
She only gets you of with Her hands.
Next She stops getting you off at all,
only teasing and edging you again and again.
It’s gradual, it’s normal, you accept it.
Her pleasure comes first, yours is unimportant.
you don’t need to cum, if that’s what pleases Her.