Tifa Lockhart

If Rito had ever seen Professor Onyx before, it would only have been in passing. She usually taught higher-level courses, having more to do with the tertiary-level students than the middle and high schoolers. Still, Professor Ruby was unable to teach today, so Onyx was taking her place.

As striking as the differences were, Onyx had several things in common with Ruby, including her overall figure. However, she ran a much tighter ship. She certainly didn't stop anyone jerking off of swapping handjobs, or one girl slipping under her desk to blow her neighbor, but she was ignoring the hungry eyes of her students and didn't give any of them the chances to get grabby that Ruby did.

Which meant at the end of her class, most of the students left pretty quickly, either for their usual reasons or to vent their lust over their substitute teacher. Most.

"Is something the matter?"

Onyx was smiling a little. The answer to that was obvious - namely, that despite this school being what it was, Rito still wasn't quite accustomed to just walking out of the room sporting an awkward hard-on when he had to get past the cause.