Your teacher pays your Step-Mom a surprise visit after she gets off her nursing shift one afternoon and tells her that you are failing all your classes. She's shocked and offers to do anything to help you get extra credit. Noticing your stiff pants she uses it to her advantage by offering to make you cum 5 times, one for each F. You can't refuse so she immediately get's to work. Sucking your dick until you explode on her face, begging you to cum in her pussy, fucking her in doggy style until you cum on her big ass, you let our load after load on her and inside her as she drains your balls five times.