It's not harmful, having someone else's body pass through him, but it's highly unpleasant, a jarring, sickening, buzzing sensation that sends a shudder through his whole body as he recoils from it. He flickers, photo-negative bluish black to white to black, back and forth, eyes and mouth round and gaping.
After a long couple of seconds, he manages to compose himself again. One small poking finger isn't as bad as that time he accidentally interrupted a game of garbage tag and had a Temmie run quite literally into him, but it's bad enough. And it couldn't have felt much better for the human. Ugh. So much for not spooking them...
h/c for why you can't just walk through Blooky here (other than it'd be rude)
"No don't - eyuuggh!"
It's not harmful, having someone else's body pass through him, but it's highly unpleasant, a jarring, sickening, buzzing sensation that sends a shudder through his whole body as he recoils from it. He flickers, photo-negative bluish black to white to black, back and forth, eyes and mouth round and gaping.
After a long couple of seconds, he manages to compose himself again. One small poking finger isn't as bad as that time he accidentally interrupted a game of garbage tag and had a Temmie run quite literally into him, but it's bad enough. And it couldn't have felt much better for the human. Ugh. So much for not spooking them...