A/N: Ugh. So. Fire Emblem Awakening is one of my favorite games, and this is one of my favorite ships. Probably just cos I like the ship prototype of a knight with someone he's guarding, but also because their supports were cute. I'm still too rusty on writing, so my style is all over the place and I apologize. Obviously this doesn't follow the "canon" for their support, but that's the fun in fanfiction.
If there was one thing Frederick prided himself on, it was his ability to always go above and beyond what was required of him. Sure, Chrom and Lissa might complain of it sometimes, but he knew in his heart that it was always better to be safe than sorry, and Frederick was nothing if not safe.
However.
There was the small matter of Lissa being...not so small anymore. Oh, no, not that she had become large or anything. It was only that she had grown up and had reached that point where being younger didn't seem like such a big deal. And what remnants of her childhood that still showed only served to make her adorably charming...
The fact was, he caught himself going more and more out of his way for her., always striving to find that extra favor. Perhaps he was going above and beyond his required duties as a knight because he wanted to be more than that to her, but if that was the case, he kept it under wraps.
There was a certain risk to proposing to a woman before reaching a higher level of closeness, and Frederick was nothing if not safe. He would have to perform many, many more favors before he could consider himself ready to openly pursue Lissa.
In the end, she got so fed up that she proposed to him herself.