Almost sixteen- that startles Donnie enough to look up again, over his knees and down where his brother is sitting.

"That's...great. Okay. It's fine. Everything's cool, Donnie, just play it cool," he starts to mutter as he tries convincing himself to not panic about being temporally left behind. He gets off his seat to pace, finding the sudden need for an outlet of anxious energy.

"It's just a thing that happens, the space bridge reaches beyond dimensions and worlds and time so of course this was bound to be a possibility what with everything else so there is absolutely no reason I should be freaking out about this- who's freaking out about it? Certainly not me, oh no..."