[Oh god what is happening. There's a small sound that might possibly be a squeak as he's swept into the hug and he grins, partially awkward but mostly elated with the discovery. It works. He knows Grell's been working with it for a while and knowing that he helped a little in closing that final loop is amazing. He finds that he also laughs as he wiggles out of her hold shortly after, hand moving to run over where the armor is just to see if it repels his hand or anything.]

It actually worked. Grell, do you realize what you just created? Do you realize what this means? You could expand on the formula and everything to make the armor even stronger.