Grandma's Visit

(Author's note: I cannot find any model for Verdona, and using simple prompts like "white hair grandmother" returns not-so-good results. So I decided to use the closest model I could find - Seiko Ayase. Hope you don't mind.)

When Ben was having a brainstorm, he suddenly noticed that something was coming. A purple ray fell from the sky, landed in front of him, and turned into a person he was very familiar with.

"Grandma Verdona?"

"Yo, Ben. I come here to..."

"Wait! I need to go somewhere far away right now. A place that Gwen cannot locate. Can you help me?"

Verdona raised her eyebrows, but she still fulfilled her grandson's wish. She gathered mana to create a portal, and after Ben walked through it, he found that he was on a strange planet.

"Thank you, you saved me this time."

"Now tell me: why do you need to escape from your own cousin?"

After hearing his story, Verdona laughed: "You run away because of that silly reason?"

Ben's face turned red: "Grandma, this is not funny!"

He wanted to explain that **** was a taboo for him, but stopped before he could say it. He wasn't sure that his grandma could understand.

"Okay, okay, I'll be serious. I think I know the reason Gwen suddenly becomes so... horny."

"What? You know?"

"A few days ago, I sensed a disturbance in the flow of mana. It means one of my descendants has awakened their Anodite heritage. When I enter the Earth's orbit, I find that it's you."

"You mean... I can use magic now?"

"Unfortunately, no. It only makes you more likely to produce a child with Anodite genes. All your children from now on will always be female. And girls with magic, like Gwen, will become more eager to mate with you. Are you feeling disappointed?"

"Well, I already had the Omnitrix after all. However, that doesn't explain why my boner didn't go away."

"Because it's a curse."

"WHAT?"

"No need to be afraid, it is not fatal. Just an old Voodoo magic to **** you to mate with a target."

"Gwen will never curse me."

"I didn't say it's her."

Ben felt uncomfortable, so he changed the subject: "Can you remove this curse?"

"Yes, but I need to activate it once to see exactly how it work. Luckily, there is a woman right here for you to have sex with."

When he understood the implication, Ben immediately refused: "No, no, and no! I ran away because I didn't want to make my sister pregnant. I will not end up making my grandmother pregnant instead."

"Don't worry about that. Today is my safe day."

After being convinced for a while, Ben reluctantly agreed with Verdona's method. Then she teleported both of them into a bedroom. She stripped herself naked, then held her breasts and presented them to Ben.

"Max is quite a fan of mammary treatment. How about you? Do you like these tits too?"

Ben looked up at her, his eyes moving down from her perfect ivory breasts to her hourglass-like hips, then to her thick thighs and the clean region between them.

Verdona caught his gaze and nodded: "Then we can move on to the next phase."

She led him to the bed, undressed him, and pulled him in. He kissed her and lay with her, then rolled her over on her back and split her legs.

Verdona could feel his hot, hardening cock slid between her legs, with the swelled knob right at the entrance to her slit. She was stimulated so much that when his cock started to enter her, she cummed a little.

It was a little while before Ben realized he was moving his body so that his cock was sliding in and out of Verdona's pussy. Occasionally, his cockhead would bump up against a barrier and he didn't press in any further. Although his Granma assured him that today was a safe day, he wanted to lower the risk as much as possible.

Suddenly Verdona let out a pained whimper. Ben immediately stopped moving while asking her:

"Are you alright? Did I hurt you?"

"No... it's just that... I'm ovulating."

"But... you told me today is your safe day!"

"It must be. Looks like the curse has a part that ensures your mate will become ready for breeding."

Seeing the worry in his eyes, she said: "It's fine, I still have my contraceptive spell. We're too far gone to back off now. Continue what you are doing."

Ben began to slide his cock in and out of her again at a more moderate pace. He watched a serine look wash over her face, while her breathing and heart rate increased. He wanted to stop, but as she said, they were too far gone to back off.

It wasn't long before Ben and Verdona could both feel their orgasms building. The woman put a hand on Ben's spine and with her other hand she cupped his balls. Both could feel a power emanating through her hands.

"I have gathered all the curse's energy. Now all you need to do is to release it."

"HERE I CUMMMM!!!!" Ben groaned.

He erupted into his grandma as her legs encircled him to pull him into her. Verdona began cumming and groaning loudly as she writhed on him. A copious amount was unloaded into her. The pressure broke through her cervix, letting a flood pour directly into her womb.

It was just a moment of bliss, yet both of them felt like it lasted an eternity. Then Ben slowly pulled himself out, while Verdona lay there, enjoying the best intercourse she had in years.

A minute or two passed, and then Ben asked: "Did we succeed?"

"Yes. But it doesn't go as well as I expected."

She pointed to her own abdomen and said:

"What a dose of potent sperm you possess. Right now, my contraceptive spell consumes a tone of mana to maintain. I'll have to keep it for weeks, or else I'll end up with a swelling belly for the next nine months."

"Grandma..."

"Don't worry, I trained magic before humankind discovered fire. My mana pool can keep up with this. Or...," She smiled teasingly, "...I can release the spell and let myself be impregnated. The choice is yours."