Which girl, if either, has succeeded?

They both succeeded, or not

Johanna throws back her head and moans with lust, her voluptuous buttocks quivering with need and the strain of controlling her imminent pleasure, while Lorelei continues to assail her sopping cleft with **** licking and sucking.

"Oh-o-o-o-ohhhh…ye—ye—ye, no! No! Oh—aahh-aaahhhhh-NYAAAA-UUUUGHHHH!"

Due to a combination of Lorelei's inability and Johanna's struggle to hold back, the resulting climax is less than earth-shattering, but a climax it is nonetheless. It takes a few moments for the spent nineteen year old to stop the rhythmic rocking of her hips and open her eyes, panting with exertion. She stares at you for a second, blinking away the tears that express her frustration and disappointment, then smooths her mussed hair and tries to adopt the most demure position possible whilst straddling the face of the young woman who just licked her still-dripping twat to an unsatisfying orgasm.

You stare at the pair for a moment, letting the silence become distinctly uncomfortable before you finally speak. "Now, Johanna, I have to ask you a difficult question and I want you to answer truthfully, in the knowledge that if you or your friend suffer because of your verdict, then it is for your own good and you would be failing her and yourself by being dishonest in any way. So tell me this: did Lorelei's tip meet the standards of excellence the university expects from its students, or did she only succeed because you lacked the requisite willpower to resist her?"

The Asian fresher draws a deep breath and then stops, as if she can't bear to say the words that stick in her throat.