It's like she can't believe how big and fat the cock is that she's about to take into her mouth -- looks like she's afraid she might not be able to accommodate its girth but is also in the throes of such intensely worshipful rapture and overcome with a strong and irresistible desire to feel it fill her mouth and throat 'til she closes her lips around the base of its shaft and tries to lick his balls as an explosion of thick cum erupts from the enormous head and splashes in her stomach all while she maintains eye contact with her well-endowed paramour the whole time!!