Kobe can't even get along with his teammates and coaches and is obviously a spoiled superstar who is not at all used to anyone saying "no" to him. I don't believe everything she has said (in fact, she admitted lying to the police), but even lying sluts can be raped, and the rape part of her story sounds very believable.
Which part of her story sounds believe to you? The part where he made her go into the bathroom to wash her face? The part where she said she hadn't had sex with anybody except Kobe Bryant?