So there are differences with traits?
There are definite differences with certain perks.
Now I only played one playthrough with no mod and then a play with a mod but some of what I noticed
You get the option to make the competitive cheerleader cum with your fingers
If you finish on her face she'll take a picture and send it to the other cheerleaders
She'll comment how many times you made her cum and claim you're the best fuck ever
The Girl you steal the exam with will also send a picture to someone as well
You get the option to both finish at same time.
Now I'm not sure what this'll mean in long term, wether the pictures add or take points from other girls, bur I think the orgasm one is important as the game tracks it.
Also there's more dialogue options with the teachers if you have the scholar perk