Nikolai knew when he was getting close to hurting her, close to drawing blood from her lips and he pulled back a little but never actually ended the kiss.
He was sort of surprised when she was already getting kind of tight around his finger. But instead of withdrawing and going for the proper fuck, he slipped a second finger carefully inside. Nik wanted her to get good and close.
And apparently she was thinking the same thing. This time he couldn't stop the movement of his hips, pressing into the stroke of her hand. But he was holding a protest. And also he could not focus long enough to put a condom on.