How to make a girl climax

Recently, Jimmy's new stepsister, Erin, was injured in a minor fender bender. While Jimmy tries to be cheerful with his girlfriend Dixie, Erin interrupts them by ringing the bell and asking her new stepbrother to serve. Jimmy is frustrated by Erin's demands, but she retains his interest as they become increasingly sensual - leading to Jimmy cheating with his new stepsister! Dixie catches on but instead of getting mad, she even demands to serve herself in a hot threesome!