I know it's a terrible simile, but it was as if she were a cock sucking washing machine with extra suds.
She would bob down, move back up and her tongue would then swirl around my cockhead, and then repeat... the entire time somehow producing this crazy oxymoron: an abundance of wetness, and yet her lips were like a suction cup.
Although I had enjoyed Portia's mouth bobbing on my cock and she'd made me cum like crazy, she was clearly an amateur compared to Ms. Chan.
Not surprisingly, in no time her masterful lips and tongue had my balls boiling like a volcano about to erupt.
And like said...