Have your mom leave the room.

"Mrs Woods, I will need you to leave the building. To now the extent of his condition I need to know if he will stay that way if you are absent. " tells the doctor. It would look less suspicious to you if she wasn't covered by your cum and clearly horn as he'll but the version of your mom from this universe seems to find it logical.

"Of course doctor. Frank, do whatever she says. And you doctor take good care of him. " she tells, leaving the room.

" It is more serious than I thought, can you come back tomorrow? " asks the doctor to the family waiting for their consultation.

"Of course not, it was just a check up. We can't keep you away from patients with grave conditions for that." she replies as she gathers her kids and leave with her husband.

Finally alone with your young, sexy , cum covered doctor she locks the entrance door.

"Frank, I will now perform a very important medical procedure. It is important that you follow my instructions. We have to find out if your condition will be manageable of it we have to find a cure. " she says to you.

"Sure thing, Doc. What do I do ?" you reply.

"lay down on the medical bed and close your eyes." she instructs you. "Good, now I want you to think of anything but you mom for a few moments."

You know this game where you have to not think about a pink rhinoceros. It is impossible because thinking about not thinking about it makes you think about it.

Even with your eyes closed the nice boobs and shaved snatch of your mom are carved into your mind and a hard thing to forget. An easy cop-out is to think of the nice body of your doctor but the more you do it the less you figure out how exactly it will help getting your raging erection to go limp.

Then you remember it. She thinks only your mom is triggering this because she is the love of your life, thinking about anything else should make you softer than an overcooked noodle.

"It is not working, what were you thinking about right now? I think it got even harder. " she asks as she touches your dick and ball, searching for some explanation to their state.

"Actually I was thinking about you, Doctor." you reply seeing no reason to lie.

You hear the noise of the small metalic stairs being dragged near the bed.

Out of nowhere you feel a thing that is new to you. Your dick is inside something wet and warm.

You open your eyes expecting to see her sucking on your dick but to your surprise she is straddling you and lowering herself on your cock.

With the new feeling in her country her legs falter and she gets down, impaling herself on your hard dick.

"Oh Frank, I dreamt all my life of this moment. This is so cool to finally find a boy that gets hard for me. I know, I will have to share you with your mom but I really want to enjoy this moment with you.

She lowers herself and kiss you on the mouth, she isn't very good at it but compensates skill with enthusiasm.

You only would have liked for her to wipe herself before hugging you but as it was you that covered her in hot cum a few minutes ago you really can't complain.

You would like to reply something romantic but can't find words. As she starts to bounce on you, the sliding of her flesh on the tip of your dick is melting your brain.

It doesn't take very long for you cum violently. It's a miracle you had a drop of cum to spare after the first time but if anything it felt as if you came even more.

She gets down from you, she had came at the same moment as you did and is smiling widely as your seed drops on the ground from your pussy.

"Doctor, look at that! I have to clean this up, I can't go back in the street like that! People will think I am weird. " you say as you point to the traces of cum on your chest from her hug and on your crotch.

"You are right, it's important to preserve your self-esteem. Don't worry, I will take care of it." she says.

You look around for a sponge or paper towel but she had something else in mind.

She starts to lock your seed from your body everywhere she found any. Her efforts on your crotch were an obvious attempt to make you hard again but even this enhanced tool has it's limits.

Once your thongue bath is over she comes with you to the door.

She lets your mom enter, still covered from head to toes in your seed.

"Mrs Woods, don't worry. Your son's desire for you is perfectly healthy and won't affect his normal development. You should help him with his needs until he finds another partner he can be with. However I will need him to come here thrice a week to follow a treatment and take some measurements. As it is an interesting case study that I might publish I won't charge you for anything. " she tells your mom.

" Help him with his needs, but what about my husband? I know it won't take long to do it once a month but I don't know how his dad will react. " replies your blushing mom, as she looks at your dick. From what you saw of pictures in your house you must be bigger limp than he is erect.

" Mrs Woods, I'm afraid you don't understand. You son has an overactive sex drive. He will need you help every day maybe more than once, not once a month or two, three times a year like most men do. As for your husband, don't worry. I will write you a prescription. " she replies.

"Thanks a lot, Doc. I have question though. How often should she help me?" you ask.

"Everytime you get hard. She should do it as soon as possible to have a maximum effect. With time as each erection is instantly satisfied you will build up a resistance and they will become less frequent. " she explains.

You and your mom are walking to her car, each of you with a medical prescription explaining that it is normal and even vital for you two to have sex together and even in public if need be.

Your mom looks puzzled. She didn't argue against it but still seems to have trouble coming to grips with the concept of a man being able to have sex every day.

You drive home.