Im getting the feeling she and Mr.X decided to romp it to make it look like Kobe had gone after her hard to make a bit of dough. This leads to the question of "well what about the DNA?" From what Im reading she don't seem too bright... so she might not know about DNA.... I know that is crazy sounding but believe me there are some dull people out there.
She's 20. I'd bet she'd have trouble spelling DNA.