It's time for your routine physical. You go into the doctor's where you meet a very attractive nurse who will be conducting your physical. Everything starts out like normal. She records your height, weight and takes your vitals. While she is doing this she makes small, flirty comments and compliments you on your physique. You're flattered as she continues on with the examination while still complimenting you. Then, she informs you that she needs to give you a shot. Something about it being the new procedure and how it makes the other tests more accurate. You think nothing of it as she gives it to you, but soon you begin feeling funny. It doesn't take long for you to become completely immobile! That's when the nurse reveals her plan. She has been waiting for someone as fit and superior as you to come along and impregnate her. She wants nothing more than to be pregnant and you are going to be the one to do it. Of course, she could have just asked you, but she didn't want to risk you saying no. Your genetics are so superior, she couldn't stand to let you slip through her fingers! So, she is going to take your seed, whether you like it or not. The great thing about the serum she just gave you is that it makes your entire body immobile except for one part. Your dick. You are still capable of getting hard, which becomes obvious as she pulls down her top, showing off her perky tits. Your cock starts growing despite the situation you're in. The nurse is more than happy with the size of your huge cock. She releases it from your pants before climbing on top of you so she can ride you. You can't help but enjoy it. She talks about how she is ovulating and how it's fate that you came in today of all days. She keeps on talking about how she can't wait for you to cum inside of her, to explode against her womb, filling her up and impregnating her. It's destiny that she conceives today! She stops for a bit as a way to build up your cum before she can't hold off and starts riding you again. Finally, she cums. Her tight pussy clenching up around your cock makes you also cum deep inside of her. You can practically feel her cervix against the tip of your cock. Once she has climbed off she gives you a warning: Don't you dare go to the cops or her bosses over this. Because she has more shots where that last one came from. And some with much more dangerous side effects. "But you wouldn't do that, right? You want to see me pregnant just as bad as I want to be pregnant?" This nurse really is insane.