If it were anyone else, he'd tell Maya to let Lydia be the sun's victim. She's the token red-head, after all, but Stiles has never tried to hide that he still has feelings for her, even if he's accepted that there's no chance anything could work out between them. Instead he simply rolls his eyes and grabs the bottle of sunscreen, stripping off his shirt and squeezing some out to put on.

"So let Scott be the lobster," he says as he starts rubbing the stuff in. "He can peel off all that nasty werewolf hair and everything. Here, make yourself useful." And he tosses the bottle over to Maya before continuing to work on his arms.