I'm accompanying my stepson to the doctor to have him checked out. We arrive at the clinic and because the doctor has an emergency we get sent into the doctor's office to wait there. Is been a while since we got there and the doctor is still in the ER and we're still waiting. I notice that my stepson is getting very very anxious and I talk him through that and try t help him out with his anxiety. It won't take too long until I notice his boner and I am completely shocked. That can't happen, the doctor can be here anytime soon. My stepson reveals that he gets hard whenever he feels anxious. I am trying to make him get rid of that with no success. He can't get rid of that boner until he ejaculates. I can't believe my own stepson does that to me ... He must get rid of that before doctor comes in the office and notices that big boner. The more I try to convince him to calm his erection, the harder he gets. I caught him looking at my boobs and I decide to take my dress down to show him my boobs. Knowing that the doctor may be there soon I reluctantly take the dress down and expose my boobs to my step-son and in the same time I make sure no one is around the office. I ask him anxiously to start stroking his cock and to cum so we can move on and won't get caught by the doctor. He can't focus and can't touch himself, the pressure is too big and I get even more anxious by the situation that is so intense. He asks me to give him a handjob , but that is completely out of our conversation, I can't do such a despicable thing with my own step-son. But he is perseveringly asking me to stroke his cock. I can't take the pressure anymore and give him a handjob reluctantly. After starting stroking his cock I see no improvement and he can't cum. Also the fact that I am rushing him makes it even harder for him to cum. He unremittingly starts asking for a blowjob and I am shocked once again he asks me such forbidden things. He convinces me to do it but I give him a blowjob in such a reluctant way. Is not too long until he starts begging me to ride him, that's definitely going to make him cum. And I do it eventually, being pressured by him but I get more and more anxious about the whole fucked up situation, if we're going to get caught we are going to be in so much trouble, stepmom fucking her own step-son, that's so wrong... He begs me to stop being anxious as I am riding him and to talk dirty to him so he can cum. I proceed and he finally cums but I am shocked to find out he came inside me without telling me so he can pull out and cum outside my pussy. The doctor approaches the office right when he was balls deep inside me telling me he pumped his seed in my pussy. Do you think we got caught??