Francine was a loving mother who loved her children equally, but sometimes one must take away their mother's glasses and try to see their defects and help them get better even if they don't want to.

With that said a nerd boy came downstairs grunting "Do I really have to do this mom?"

Steve was wearing a muscle shirt and short shorts, that day was more than annoyed, apparently, his mom had made for him a workout routine to try and get him into shape so he would have more self-esteem and not be some scrawny geek that gets bullied all the time. This is not something Steve didn't know it was what girls would want but...there was just a lack of interest from him to get buff and all the cut shit, even if it was for girls it just wasn't him

"Don't worry hun, I know how you seem to be down in the dumps about it so I am going to join you as well"

Francine came out of the kitchen with her workout clothes which consisted of a sexy pink one-piece and leg warmers. Quickly making the nerd boy look at her with MUCH more interest than before, as her curves of big beautiful breasts and a nice round big booty were shown in a way that Steve felt a rush that he quickly had to put under control before it was too late.

"I even got these new workout drinks in the fridge ready to go. Today we are gonna work hard son, and I don't wanna listen to any complaints, no pain no gain"

Francine said while shaking the bottles of liquid which in turn made her boobs wiggle, a delight to the nerd's eyes.

"Y-Yes mam" He bit his lower lip.

Franny had prepared the basement to be an area for them to exercise, it didn't have a lot of machines but it had a treadmill, some weights, and lots of imagination for exercises that did not depend on machines.

She never said that out loud but….her son was kind of a frail little kid, the kind that would even lose to an anorexic kid because not only was he weak, he was also spineless. Francine had to make him a man or else he would be a loser forever.

How the exercises went? Well….good?

It has more to say on how they went to make Steve actually give his all, for example when he did push-ups Francine would sit on his back which prompted the need to feel her butt, she was heavy but if he told her that he could take her weight then he would not be able to feel her ass on him again so the geek said he wanted to push himself.

When it was time for sit-ups, his mom would hold on to his feet when he would push himself to go up and look at her. Did he look at her face? No. Every Time he went back up from a sit-up he would use that chance to stare at her beautiful sweaty boob cleavage that was held on by the one piece. God! It was such a nice view, he was determined to keep Oggling her body even if he ended up sorer than that time he did CrossFit.

It was later thought that things were starting to get a bit different.

When the two of them drank the drinks that Francine had brought, rested for a couple of minutes and went back to exercise. Francine was doing squats and Steve was right behind her, just to look at her ass when she went squat, which he had to do it too.

But this time he felt hornier, like...much hornier than he was previously, the more he looked at his mom the more it felt like his crotch was burning up. Francine? At first, she thought the burning feeling was just the heat from how much she was exercising with her son who surprisingly was keeping up and not complaining for some reason. But she could tell something was wrong.

The feeling of it in her loins was asking for something big and hard, her inner instincts telling her to look around for something to quench her. And in the process, she looks at her son Steve who was taking some breath back, and for some reason, her eyes go down to his crotch.

'Whoa...is that his?'

Francine thought, surprised to see how big Steve's pulsing bulge seemed to be on his short shorts, trying to escape. If her years with cock was anything to go by then doing the math in her head he would probably be a ten inches cock with that much bulge going on which was a surprise.

'My son….is….well endowed?'

She thought that was the biggest revelation ever, he was bigger than her husband, a cock that big in her house without her knowledge plus the horny feeling increasing?

"Steve" She calls him softly.

"Yes, mother?" Steve called back, breathing heavily.

The boy had been unable to NOT stare at her jiggly body all this time, trying all for dear life to stare at it more, to want more, more than stare. If only Francine knew that the drinks she got were an experimental serum that increased libido in which Stan had left on the fridge by accident.

*One scene changed Later…*

"Whoa!"

Steve lets out a voice of surprise after his mom had just lifted him up from the basement in a bridal style and just threw him on the couch. When he looks back he sees her with a look that would make any pornstar actress look tame.

Those were the eyes of a hungry milf. Steve was a perverted nerd who wanted to get laid, but Francine? She was a middle-aged sexy milf who was not totally sexually ok with her life right now and was actually more of a slut than she let on, so the drink was more aggressive on her body.

"Time for a new exercise honey"

Francine then rips off her one-piece and throws off her shoes leaving only the leg warmers as her body is now at the full view for Steve to see which gasped in surprise.

"Let's get rid of this annoyance"

The blonde-haired milf said, removing his shorts and letting the cock spring out at full mast which Francine licked her lips in anticipation.

"Uh….b-be gentle?" Steve mused with a weak smile.

Francine smirks widely before touching his nose "No"

The first position that Francine tried on Steve before inserting the entirety of his cock into her pussy and hearing his moans of utter pleasure was Cowgirl. The milf rides him fast and hard on that couch, every movement from her body went in rhythm to her hair swinging back and forth.

Her ass cheeks being groped and slapped by her big dicked nerd of a son felt amazingly hot as it was one of her favorite fetishes, it only prompted her to ride the shit out of him even harder than before, boobs shaking left and right close to his face.

When she got tired of that she would change position to reverse cowgirl which gave her more space to move, giving Steve a view of her ass bouncing up and down, her back and hair, the same as seeing his cock going in and out from her pussy.

Steve moaned lots of things while that happened, things such as Mom, mommy, Francine, Franny, bitch, slut, and go slower.

But the one position in which Francine Smith was more AGGRESSIVE and DOMINATING with her son was without a doubt the Reverse mating press. On that move, she had total and complete control of him and his body, the way she moved onto his dick and how the couch shook were almost as Violent as that one time Roger had sex with that alien Pink fur ball whose name she forgot.

It was Fast. It was loud. It was animalistic. The moans of pleasure and grunts of pain filled the air to the point anyone would think that someone was dying or worse. Each position that Francine had tried led to one thing….

CUM!

Steve had multiple orgasms in which his balls were shooting blow after blow inside her pussy like a cumdump, it was never enough, no matter how thick, how creamy and potent. Francine would just change positions and ride him harder the next second, and what's worse! His cock would not go numb.

It's like his manhood was in a constant state of erection and even if his mind wanted to stop, the body was too stubborn to let go.

*Sometime later*

"Hhhmmmm"

Francine gets up and stretches out feeling refreshed and really in a good mood.

"That was amazing honey, best workout of a lifetime. Maybe we should do this sometime again. You still need to work on your stamina though, I feel like I could keep going but you can rest now"

When the blonde-haired woman goes upstairs to either take a bath and rest or perhaps look for another guy, Steve is left on the couch in what one could say a NEARLY comatose state. His breath was erratic and he had the Japanese definition of an ahegao face, someone who had way too much pleasure.

But...His cock hasn't gone down yet.

"H-Horny Demon!" He lets out.

The door is suddenly opened and from there comes Roger who for some reason is dressed in his persona of Laura Vanderbooben.

"Those idiots don't know how to appreciate-"

The blonde-haired persona with big proportions looks at Steve's helpless legs spread (thanks to the reverse mating press) and sees that the guy has a raging and sensitive erection.

"Well well….do you need any help with that stud?"

"Ughhh…." Steve just moans louder.

"I take that as a yes" Laura grins.