Charley's special thank you

You have allowed Charley to stay in your home for the last year and she is grateful. Your step-son is dating Charley, so you do not consider it to be an imposition at all. Charley confesses to you that she has urges when she is near you, and this takes you by surprise. She wants to see your dick and see how big it is. Maybe you can stroke it for her and Charley can show you a little something. She cannot control herself any longer and she wants to show off her body to you. Her big tits are no surprise, since you have previously seen her in a bikini at the pool. It is clear that Charley wants you as she removes her shorts and panties. You see a little bush as she tells you that her pussy is very wet. Next she tells you that she wants to see what you look like when you cum. Please will you make it cum just for Charley? Just this once? She wants to see the look of satisfaction on your face and when you finally do cum, she promises to keep your time together a secret.