Isabelle snickered, but that, too, got muffled against his cock. This was her way of shutting him up, and it was working.

So, she got her hand further involved, working the shaft while her mouth stayed over the tip, enveloping it with warmth and wetness, getting her lips stinging a little bit with friction as she bobbed her mouth up and down over his cock.

Still found the time to glance up to see his face, though.