Well heck if that doesn't send a shock right down his spine and tingling along each of his ribs. Sans is pretty sure Toriel could sell her touch as a posture cure-all, because his certainly improved in the space of a half second after she touched him.

"Guilty." He shrugs, now sitting ramrod straight and blushing furiously all over again. "But hey, at least I'm not an alcoholic. They're always needing a drink, but I've already got one, see?"

With a little wave of his glass, Sans' grins triumphantly.