You have some happy news for me (your little sister). Your wife is pregnant! You notice that although I am trying to appear happy for you, there is something upsetting me. You know that I never managed to get pregnant with my ex, and I always wanted to. But that's not all... I am also upset because your wife is pregnant by YOU. I'm jealous, because I've always had feelings for you. To my shock, you tell me you have feelings for me too! Tentatively, we begin to explore each other. I want you to make me pregnant, just like your wife. You think I'm hotter than her, don't you? Pump me full of cum, now!