The Final Lesson Isabella needs to teach Kayla has to do with Vibrators, particularly the ultra strong Vibra-King vintage toy. Guaranteed to be the most intense of vibrators, the sensations it induces are legendary. It frequently induces multiple orgasms so intense that women who had never squirted previously do for the first time. Isabella let's Kayla meet and enjoy the vibra king for the first time. Near the ending to the scene, Kayla gets to offer Isabella some pay back too, with a different type of vibrator.