Oh Bucky, you never have to worry about me not thinking about myself. I'm constantly on my mind.

[He laughs, relaxing a bit more.]

Besides, Sans had my back. He's a good friend and he would've done his best to make sure I didn't get hurt.

[No matter how strange things between them have gotten, he's confident that Sans will be there for as long as Mettaton is there for him. Which honestly will probably only be to the end of this event, since Mettaton will need to pull away after this delightful vacation, but that's for a few days from now.

Mettaton's mouth turns up in delight at Bucky's playful joke and he nods.]

You are absolutely right! I'll have to find you something wonderful for your birthday. It could never match your caliber but it can come close!

[Mettaton's smile falls just a little, his eyes softening to a gentle bitter sweetness. Would he have even been able to see him if he knew when his birthday was? Probably not. As much as he would have loved to, he's needed to pull away for awhile now. Perhaps it's for the best he missed it.]

...Well, I suppose we're making up for that now, hm? Here you have me all to yourself.

[...that came out a little more flirty than he intended. Mettaton has enough shame to at least look slightly contrite at letting that slip out.]