Another mess of moans fell from his lips, finding he should probably be a little quieter and sunk teeth in into his lip for a brief moment. Only then did Acid deem himself calm enough to shudder out a breath and glance to Desmond.
His mouth fell open, a small 'ah' sound leaving without being able to stop it and Acid stared. "Oh my god, seriously. Your mouth..." He gave a groan, adding, "I could write a dissertation on it."