Arthur is not sure how his mom came up with this challenge but this prize she mentioned is too good to pass up, "Focus Arthur, you're almost at the end~" Lightning said. She is only wearing a red bikini. So Arthur can see how big his mom's boobs and ass are and how curvy her body is. He can also smell the perfume she put on.

He's currently sitting on Lightning's lap and the back of his head is resting on her boobs. Her hands are on his stomach and close to his erection. He knows it is wrong to get hard for his mom but she's just so sexy and pretty.

Lightning kisses the top of Arthur's head, "Remember, beat the final boss and you get something very nice~" she purred.

"Okay, mom!" Arthur says determination and focuses on the game he's playing. He's on the final stage and is approaching the final boss. He beat the game before but now it's on the hardest difficulty and is trying to not get distracted by his sexy mom. Easier said than done.

Her encouragement and the prize she mentioned helped Arthur defeat the final boss, "I did it!" Arthur said happily and looked up at his mom with a bright smile on his face.

As the ending cutscene plays, Lightning happily said, "You did it! I know you would," she gently touches Arthur's face and leans in to kiss her son on the lips. She touches the side of Arthur's face with one hand and with the other opens his shorts and fishes out his cock. His manhood springs out, standing straight and throbbing.

Lightning is happy that her son is big for his age.

As she gives her beloved son a loving and passionate kiss, grabs his thick shaft and starts to stroke it. Arthur moans and instinctively reaches out and grabs his mother's soft large breasts. His classmates always lustfully stare at his mother's chest when she shows up in school, but that's all they can do, Only Arthur can touch, suck and fuck Lightning's wonderful breasts.

The only condition is Arthur must keep what they're doing a secret.

Lightning breaks the kiss with Arthur. "Just sit back, relax and let mommy take care of you~," Lightning said with a lustful smile. She gets Arthur off her lap and sets him down on the white couch then gets on her knees and positions herself between Arthur's legs and pulls down both his shorts and boxers. She rubs the tip with her fingers and slowly runs her tongue on the underside of her son's cock.

"Have I ever told you that your cock tastes better than your father's?" Lightning said as she licked more of Arthur's cock.

"You did," Arthur moans, "And you said I'm bigger than him too and I'm still growing,"

Lightning smiles, "Enough about your loser of a father who left us and focus on this~" she opens her mouth and wraps her lips around his tip and starts sucking on it while stroking his shaft. Arthur moans closes his eyes and sinks into the couch. Enjoying the feeling of his mother's lips and tongue on his cock.

As Lightning bobs her head, she takes more of her son's cock into her mouth. She starts to massage his balls to give her son more pleasure, "Mother~" Arthur moans with both lust and love. He puts his hands on her head and runs his fingers through her pretty pink hair. Arthur is happy he inherited his mother's hair. It did bother him that he got his father's eyes but Lightning told her son his eyes are prettier than his father's.

Hearing her son's moans and tasting his cock is turning Lightning on and very wet. She will have him inside her soon enough. For now, Lightning is going to enjoy sucking off her son. She puts her hands on Arthur's thighs and takes his cock deeper until it goes down her throat. Lightning didn't do this with Arthur's father because his dick was too small.

As she deepthroats Arthur, Lightning bobs her head faster and sucks harder. She opened her closed eyes to see the look of pleasure on her son's face, "So cute~" Lightning thought. Moving her hand between her legs, Lightning starts to pleasure herself. She wants to cum with her son which from how much his cock is twitching, is going to be soon.

"Mother! I'm going to cum!" Arthur moans loudly and shoots his thick seed down his mother's throat. His hands drop to his sides. At the same time, Lightning cums too. As he shoots his load, Lightning moves her head up a bit so she can have a taste of Arthur's cum.

After drinking every drop, Lightning slowly moves her head up more until her son's cock leaves her mouth with a wet pop sound. "Tasty~" Lightning said lustfully and licking her lips then eyes Arthur's manhood, "Still so hard~," Lightning said proudly.

Grabbing her breasts, Lightning sits a bit up so her chest is parallel with Arthur's cock. Knowing what his mother has planned next, Arthur's manhood twitches with anticipation. Lightning lifts her breasts then lowers them on her son's dick. Arthur moans as he feels Lightning's soft breasts wrap around him.

Pressing her breasts together, Lightning starts to move them up and down. "I bet a lot of your classmates wants this to happen to them,"

"Yeah!" Arthur moans, "I keep overhearing them about how they want to gangbang you. Whatever that is,"

"Wow, kids these days," Lightning chuckles.

"What is gangbanging mother?" Arthur asked.

"It's a group of people having sex with one person. Your classmates want me to fuck them all at the same time. Too bad for them I hate gangbanging. I prefer to have sex with one partner, more personal and intimate that way. Don't you agree?" Lightning smiles. She changed the way she's moving breasts by alternating once one goes and the other one down.

"Yes!" Arthur moans.

Lightning moans with him, "I can feel you twitching. Are you going to cum sweetie?" she asked lustfully.

Arthur nods, "I am! Your breasts feel so good! I can't get enough!"

Lightning licks her lips, "Then cum for your mother~ Cover me with your cum and make me with your scent~"

"Mother!" Arthur moans loudly. His cum shoots out between Lightning's breasts like a geyser. His thick, warm seed lands on her face and the top of her breasts.

As Arthur catches his breath, he watches his mother scoop and licks his cum off her. The sight makes Arthur hard again. Lightning can tell because she still has her son's cock between her breasts.

Lightning stands up and moves forward, "It's time for the main event my son~" Lightning purrs and moves in closer until her breasts are pressing against Arthur's face. She did make sure he can breathe through his nose. With one hand, Lightning holds her son's cock still and the other pulls her thong to the side.

She rubs her wet folds against the tip of Arthur's cock. Mother and son moan together as Lightning lowers her hips until her son's dick is deep inside her. Lightning puts one hand on Arthur's head and the other on the sofa, "Let me do all the work sweete~" Lightning said with a moan.

Unable to talk due to his mouth being covered by his mother's breasts, nods. He puts his hands on Lightning's ass and she starts to move her hips up and down. Lightning moans loudly as she feels her son's cock move inside her and hit her womb. She loves that feeling and is addicted to it.

Lightning originally plain to move her hips slowly so she can savour her son's cock, but due to how horny she got from sucking Arthur's cock and titty fucking him dashed that plain. Her hips instead are moving fast and her ass cheeks jiggle every time they hit Arthur's thighs, "I love your cock son! It's the only one for me!" Lightning moans loudly.

Arthur moans as well. He feels so blessed and lucky to have a mom like Lightning. Not only is she beautiful on the outside and inside too.

"Don't hold back honey! Shoot every drop of your cum deep inside mommy!" Lightning moans loudly. She is holding back her orgasm because she wants to cum with her son again. She didn't have to wait long and Arthur shot the last amount of his cum for the day, "OH SON!" Lightning screams as she cums too.

Moving a bit back, Lightning takes another look at her son, "How did you like your prize?" Lightning asked with a smile.

"I love it, mom," Arthur smiles, "I promise to give you a thank you gift,"

"I look forward to it," Lightning said, then notices how much the both of them are sweating. "A warm bath is in order," she said.

"Can we take a bath together?" Arthur asked eagerly.

Lightning giggles and nods, "Sure we can but no sex. We just did it,"

Arthur nods, "Okay mother, next time," he smiles.

"Next time," Lightning smiles.

A few minutes later Lightning and Arthur are relaxing in a bathtub full of warm water. Arthur is resting the back of his head on his mother's breasts, and she has her arms wrapped lovingly around her son. "Hey, mother,"

"Yes, son?" Lightning asked.

"We will be together forever, right?" Arthur asked.

Lightning smile, "Right,"