I'll give you points for animation.
The characters were acurate (in appearance) the animation was good, and the use of the real anime befroe yours was a clever idea.
BUT...
she was getting it in her @$$, so why was the white-ish goop exiting her? (I know, she's a robot, chill)
second, if someone is getting genuinely raped, they don't enjoy it no matter how good it may feel.
Third, if that was REALLY happened in the anime, the other characters would either help or join in. Though I don't think in this case Cell would allow them.
Great effort though.