He was very sincere with his words. She was his first and the knowledge that she had never been with anyone else except him boosted his ego so much. He wanted her to experience all her firsts with him, so he didn't mind the lack of experience.
He was eager to teach her and make her cater to his liking.
Briar when hearing this, her eyes started becoming teary as she looked at him. She felt very touched and guilty for a lot of things.
Logan, not knowing what she was thinking, simply thought that she was touched and maybe his words had made her too shy. She was now feeling embarrassed. Seeing her like that, he felt that she might lack some reassurance and since he now planned to live faithfully the rest of his life with her, giving her what she lacked even in the form of words would be the best.
