Helping my mom to quit smoking

Son gets a phone call from his mom's doctor, he says it's very important that she stop her smoking habit. The son confronts his mother about this and she says she has tried to quit in the past but it never works. She makes the joke that the only time she doesn't smoke is when having sex. The son puts his hand on his mom's pussy and starts rubbing. If this is the only way to get her to stop smoking he will do it. She tries to move his hand but he pulls off her pants and underwear. He starts licking his mom's pussy as she pulls off her top and plays with her tits. He gets her to the brink of orgasm and she pushes his head into her pussy and wraps her legs around him and has a shattering orgasm. He gets up and reminds her, no smoking.