Video Description: Professor Alder has asked her student Carmella to come to her house! She is very displeased with Carmella as she explains she's failing bio, and she will not pass this year! Carmella begs for a 2nd chance, as Nina reveals that she's sitting nude on the couch! Nina rises to go on all 4s and tells Carmella if she wants to pass, she needs to lick her entire dirty ass clean!