If I didn't have abs before, I do now.

[Look, she can't not crack at least one joke, there. At least it's said with the usual kind of bored tone she always uses.

... But it's followed up with a warm smile as she finally returns Momo's hold, turning a bit in her arms to face her fully.]

An incredible person deserves an incredible birthday, right?
I'm just glad if I could make you as happy as you make me, y'know.