It's step-daddy's birthday. My present is me

I've had the feeling for a long time that my stepfather has the hots for me. I want to find out on his birthday. My mum has just gone shopping and he wants me to help him prepare everything so that the guests feel comfortable. Instead of taking care of that, I lie on my bed in my underwear and wait for him to come looking for me. When he comes and is already nervous, I tell him I have a very special present for him and take off my bra. He stares at my tits and I can see that his trousers are getting tight. I get down on my knees, take out his cock and blow him with relish. Then he can stick it bare into my wet cunt and fuck me as much as he wants. I'm sure that was his best present ever. Unfortunately, he's not allowed to tell anyone