Even though her initial demeanor appears demure, don't be misled by her innocent facade.
Adelina is a wildcat, and the thrill of Vincent Vega penetrating her prompts euphoric pleasure. Whether at the rear or front, or taken orally, the sensation of lovemaking always leaves her yearning for more.
After this ecstasy-filled encounter, she'll still be longing for satisfaction, while Mr. Vega is left physically drained.