Stepsister Shares Bedroom Again

Your stepsister comes to your room with some bad news. Friends are staying over and taking her bedroom. So she wants to camp out in your room for the night. Remember what happened last time? Unfortunately now you have a girlfriend and were ready to have some phone sex with her just when stepsister walked in. She laughs at you and wants to see your hard cock for old times. No harm no foul right? Since your hardon is getting uncomfortable, she volunteers to take care of it...for old times. How far will this keep going...for old times...