Before this place, Regulus would've definitely turned away from that kind of touch or at least glared at the person until they stopped. Now? Now, he was learning to let himself experience contact that wasn't a prelude to violence of some kind.
He wasn't entirely sold on the idea of Klaus' humanity. Something about the way he moved and occupied space almost felt like he was a dryad of some variety just hiding in a human seeming.
He went to gently nip the other boy's finger, not really fussed if the follow through wasn't there and he ended up just clicking his teeth against air. "I am trying," he said, not the slightest bit defensive.