Derek is, at first, pleased by Thomas' reaction to the fruit, but his lips flatten into a thin line when he starts to lick at his fingers. Derek bites back a sigh and watches for half a second before mentally kicking himself and turning to pick a few more berries.

"Don't just go eating any berry you find out here," Derek tells him, flicking a bad berry off into the bushes. "Some will make you sick."

Derek walks away from the bushes with a handful of perfect blackberries for them each, and he pops a few into his mouth. When he smiles over at Thomas, his lips are stained a dark purple until he licks them clean.

"Ready to keep going?" He asks, holding the rest of the berries out for Thomas to take.