"Awww," she says in a condescending way, "what are you worried about?" Then she starts to -- you can't believe it! -- unzip her top! While she does this she lifts her rear end up a bit, which exposes her ass, and you can see that she's not wearing any panties!
Please, you gulp and beg her, can't she just sit still? You ask her not to tempt you any further!