Son, come here a second. I need to talk to you about something. See, I want to trust you - I really do, but I remember what I was like when I was younger and what all the boys were like and well, I'm a little worried about your date tonight. In fact, I went and spoke to the doctor and he gave me some good advice. Before you are allowed to leave the house today honey, you need to cum for me. Not just once either, the doctor said you need to drain your balls totally so no matter what you want to get up with that slutty little girlfriend of yours you won't be able to. Now, I want to watch - just to make sure you are following my instructions you understand. I know it might be difficult after the first time so I might be able to help by giving you a little bit of encouragement. I mean, your girlfriend is lovely and all, but can she really compete with my huge soft E cups? I didn't think so. Now, get your cock out for me honey and start stroking for your Step-Mom.