She cups his balls as he wishes but continues to take her time on licking and sucking on the rest of him. Swirling her tongue around his tip. Taking it into her mouth to suck on it for a few minutes. All while moaning softly around it. Taking it into her mouth. Moving her mouth down then slowly back up. Licking it all up and down before taking it into her mouth once more. Moving her mouth ever so slowly up and down his shaft. Sucking on it a bit harder as she does so. Swirling her tongue all around even more. Sucking on him as one would a straw. As she takes more and more of him into her mouth.