His movements to adjust their bodies are much less nuanced and delicate than their previous encounters, but he is still careful (even as turned on as she is, with how desperate she wants him and how eager he is for her, he would never willingly cause her any pain) with pulling her closer to him. He trades his fingers for his cock and enters her, allowing her to rise and shift against him until he feels as if she's comfortable, wanting more from him.

(Her neighbors have no idea how lucky they are that she warded the walls against sound escaping, because neither of them are bothering to even attempt to stay quiet.)