I would have to tend to agree. She appears to have some better than average oral skills, thus if she had any idea of the entire ejaculation process, she would appear to have been able to pull his cock out of her mouth before he fully unloaded his seed into her mouth. Her actions and comment do not appear to match to me.
She loses me a bit with her asshole comment. Regardless of the size of his cock, she is sucking it hard and deep, so what did she expect? Eventually, he is going to lose it. did she not feel him tightening up? I guess she wanted a warning.