You’ve done a good job of depicting Jessie’s lie. I also read in this exchange the mother’s suspicion–if that was your intent, you’ve clued us in well.
This brings up a good point: know whether or not you want your lie to be believed by the person being lied to. It adds a layer of tension and depth if we see the other character suspecting what we as readers already know–a character is lying. But it also may serve your plot to have a character lie well and get away with it. So as you work to construct a scene around a lie, determine how successful you want your liar to be.
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