F isn't Always Bigger

This is an adaptation of BlueBallGuzzy's story, "F is Always Bigger." Absolutely all the original credit goes to them. Go read their story!

BlueBallGuzzy, if you want this story to be taken down, so say and it will be done immediately.

Warning: Futanari, Excessive amounts of cum, absolute massive cocks, and a little bit of magic. This story may seem a tad bit ridiculous, and it is supposed to feel like that. Keep it in mind while reading.

***

It was supposed to be a loving text message from his girlfriend, Lisa, but it was something far more horrifying. He received a text message and checked it to see a video of his girlfriend being covered in a thick, gooey, white liquid. However, it only took him a moment to realize what it actually was.

It was cum. The realization of the absolutely massive amount of cum being shot towards his girlfriend caused his dick to strain against his pants.

"What the fuck is this...?" Justin, our main character, couldn't help but stumble as his eyes locked on the sent video. It played over and over against his will, and every time his mind became hazier and hazier.

It was absolutely shameful, but he didn't even try to resist his urges. Closing the door to his room, and properly laying down in his bed, he looked at the horrendous video over and over again and stroked his cock.

It was a respectable six inches, nothing ground-breaking, but certainly wasn't anything to laugh at. It fit nonchalantly in his hand, only about an inch and a half thick. He had a respectable cock and his relationship with his girlfriend never suffered because of it.

As he quickly pumped his cock, he received another message from his girlfriend, and he checked it, slowing his pace down.

The message was another video, this time longer than the first one. It showed Lisa covered in thick cum, naked and sprawled across a white background that Justin could only assume was cum. The video showed a cock that was absolutely massive.

The cockhead was easily four to five inches in length and three inches in thickness. The cockhead hung over Lisa's head, leaking a consistent stream of batter-like semen. The video panned up the cock, going and going and going.

"That... can't be real..."

The veins of the cock were easily as thick as a pencil, and constantly throbbing. The cock was long, far longer than anything Justin had ever seen before. It was easily over a foot long, looking thick and heavy all the way up the shaft. It must've been six inches thick, easily tripling the size of Justin's. As the video finally got to the base of the shaft Justin saw the shaved crotch and a pair of massive balls.

A woman's hands, soft and dainty, with light purple painted nails grabbed and kneaded one of the massive balls. Then he heard a voice, one that almost completely stopped him from softly pumping his shaft.

"She's not your anymore, Justin. She's found a real cock," He heard a woman's voice berate him, and his cock twitched as he did.

Almost instinctively, he pumped his cock faster than before, moving up and down over and over again without hesitation. Despite what the message meant, the idea of the massive cock being a woman's stirred something inside of Justin's heart.

Soon he could feel his end coming to him, and with a few more pumps, he shot hit load into the air and onto his chest. He put his phone down and took a moment to breathe.

He expected to feel bad, or to feel hurt by what his girlfriend did, but surprisingly, he wasn't thinking about it. His mind was on the voice he had heard.

"Who's voice was that? It sounded so... familiar?" Justin cleaned himself up and let the realization of what just occurred sink in.

"She... cheated on me?" Justin simply couldn't believe what he saw. His girlfriend of six months, cheating on him for a woman with a scarily massive cock?

It wasn't something that he could understand.

A part of him wanted to respond to the messages he saw. Another part of him wanted to delete the messages he received and deny the existence of what he'd seen.

He wasn't going to listen to either of those sides though. He had another side.

He was going to find the woman who fucked his girlfriend, and he was going to find out why. It may've been impossible, but he wasn't going to let that stop him.

"Justin, Honey! Come eat dinner!"

But his beautiful mother was calling him so he'd certainly eat dinner first.

"Coming, Mom!" Justin replied, looking back at his phone one more time before setting it down with a twitch in his pants.

He went down to see his beautiful mother setting the kitchen table.

She was standing a little bit over six foot. She was a curvy woman, even if her age gave her a tad bit more pudginess. Every step her hips would sway from side to side, causing her fat bottom to shake in sync.

Her breasts were only what Justin could call huge. He couldn't say a specific cup size due to his lack of information, but he could always see that they were both easily the size of his head, if not far bigger. They were squished due to his mother wearing a dress, but he could still see they were positively massive.

He had to constantly remind himself that he was inside this woman's genitals for nine months to curve the idea of having sex with her.

"Hey, what're we havin'?"

"Nothing much, just some spaghetti," His mother smiled at him.

Dinner was calm. Quiet, but calm. Justin was caught in deep thought the entire meal, the subtle feeling of arousal lounging in his gut. Because of his arousal, he caught himself taking very long glances at his mother's chest, almost analyzing the older woman's mammaries.

It must've been cold because he could see her nipples pointing out. They were large and thick, and he unconsciously swallowed as he felt saliva building up in his mouth. He imagined sucking them, only to be pulled back into reality with a light cough.

"So um... I've got some work to be doing. Can I trust you to put up the food and clean things up in here?" His mother hopped up from the table and quickly began to dart towards her room, causing Justin to quickly respond.

"Y-Yeah! I've got it!" Justin told his mother, allowing her to return to her room without a doubt in her mind.

"I totally fucked that up..." Justin spoke quietly to himself, his aroused mind traveling back to his mom's tits and ass.

He quickly cleaned the kitchen in an intention to head back to his room and jerk off for the second time of the day. As he finished sweeping the kitchen, he quickly started to head back to his room, but he stopped to take a second to listen.

Over the sound of the dishwater he could hear some light slapping from his mother's room. He was confused to what it could be, but his horny mind was ready to fill in the blanks for him.

With thoughts of his mother very loudly masturbating, Justin slowly creeped towards his mother's room, leading his head on the door and listening.

"Fuck... yes, suck on them. Goooood~" His mother was talking about someone sucking on her tits?

He didn't know anyone else was in the house, but he trusted his mother's judgement. Not wanting to intrude anymore, and having a very constant dribble of precum beginning to stain his boxers, Justin quickly fled to his room.

Just as he began relaxing in bed, his mind traveled back to the massive cock he had seen in the videos sent to him by his girlfriend's phone number. Or, in a case like his, his ex-girlfriend's phone number.

He felt his cock begin to harden, and he was quick to whip it out and pull up the video to start whacking to it once more. He was stopped on his second or third pump by the sound of his mother's door opening.

He became hesitant as he tried to act as nonchalant as possible, putting his stiffy back into his pants and turning on the TV as if nothing was happening.

His mother knocked on his door, and after an affirmation from him, peaked her head inside.

"Hey Baby, I just wanted to check on you before I went to bed. Everything okay?" His mother's soft, beautiful voice asked him.

"Yeah, yeah, everything's cool," Justin shrugged, trying to ignore the cooling precum in his underwear.

"How's Lisa?" His mother asked, and Justin felt his voice catch up in his throat.

"She's, uh, good. She's busy right now, but I'm gonna probably call her later," Justin lied, looking away from his mother and back at his TV screen as if nothing was wrong.

He knew she could probably sense that something was off, but she didn't bring it up.

In the corner of his eye he could see a smirk grow on his mother's face, but Justin couldn't quite understand why.

"Okay baby, goodnight," His mother's voice sang to him before closing the room door behind her.

Justin waited a few moments, hearing the sound of his mother's footsteps slowly leaving back to her room. After a moment though, he didn't hear sounds of his mother's door close.

He got up from his bed, shifting his cock around in a more comfortable position and slowly left him room. He didn't know why, but his heart was pounding in his chest. He didn't feel like he was doing anything wrong, but he was nervous regardless.

Then, he could hear it.

"Good girl... There you go, sweetie," Justin heard his mother's moans, much clearer to him because his mother's door was no longer closed.

"Good girl?" Justin thought, his cock throbbing in his pants.

He knew this could change his relationship with his mother for the rest of his life, but at this point, his mind was no longer fueled by logic and reasoning, but by lust and curiosity. He walked up to his mother's room, and despite his pumping heart, slowly pushed open the door. There he saw it.

His mother, facing away from the door, grinding her crotch directly into Lisa's face. She was kneading one of her massive tits with her hand, a satisfied smile on her face. Lisa's hands were on his mother's ass, squeezing into the fat needily. His mother rocked back and forth as she turned to face him, a sickeningly sweet smile on her face. She didn't have an ounce of shame, as if the situation was perfectly normal.

"Oh, hey Justin. I was wondering if you were going to join us this time. Do you like what you see?" His mother, despite not having ever shown anything but love and compassion for him, was having sex with his girlfriend in front of his very eyes. It looked like she was being eaten out, or maybe, that's what Justin wanted to be happening.

But then his mother pulled back from Lisa, causing two, then three, then four thick inches of cock to come out. Justin felt his cock twitch as she continued to pull back.

Five, then six, seven, eight, nine, and ten inches. Then she sunk them all back into Lisa's ruined throat.

"Don't worry Justin, I've warmed her all up for you. You can fuck her as much as you want," Justin's mother pulled her cock out even more. 12, 14, 16, 18, 20 inches.

"Sweetie, you have to work with me if I'm gonna take it all out," His mother softly ran her hand through Lisa's hair, humming politely despite the vulgarity of the situation.

Then she finally took out the rest of her massive cock, showing all 26 inches of insane cock.

His mother's cock laid against Lisa's face, pumping a steady flow of batter-like precum. She looked at Justin with a small smile on her face, looking at the clear outline of his cock in his pants.

"Come on Justin, take it out for us. Surely it's big enough to compete with me," His mother reassured, a sick smile on her face.

Justin couldn't believe what he was experiencing. His voice was caught in his throat and he listened to her orders without a comment. He pulled out his small six inches that he thought was fine not anymore than 12 hours earlier.

"That's it?" His mother smiled widely, as if her pride and joy was having a bigger cock than her very own son. Justin nodded weakly as his now exposed cock dribbled precum onto the ground.

"Well Lisa, which do you want? Justin's cock or mine?"

Lisa looked over to her boyfriend, seeing his shocked and mortified expression, then to his cock. Then she looked up the massive shaft of his mother's cock, up past her massive tits, and to her confident grin.

Lisa began to sink down the mother's thick cock, gagging and still forcing herself down the massive cock.

"Well, it was her decision honey. She wants the bigger cock, who am I to stop her?" His mother asked, nonchalantly shrugging. She gave her ass a quick swat before putting her hands on the back of Lisa's head.

"Don't worry though. You can always take your anger out on this. Let's just hope your cock can even reach!" His mother suggested, laughing as she pushed her cock deep into Lisa's throat.

"You better prepare sweetheart, because you're gonna see something truly amazing," His mother warned him, shoving Lisa's head down to the base of her impossible cock, the cockhead visible at the very top of her stomach.

Justin could hear a low gurgling sound, the sound of his mother's massive balls getting ready for a stupidly powerful cum shot.

There was 20 seconds of slurping sounds before they all stopped. His mother's cum shot had begun.

Lisa's stomach began to surge outwards as more and more cum filled it before it could no longer hold it in anymore. His mother's cock began to get forced out, eight inches being freed as the wave of cum tried to escape. His mother just pushed her cock back in though, her balls clenching periodically as she did. She fought back against the own power of her cum shot for at least ten seconds before it looked like she was going to be done.

No, it felt like just the beginning. Her balls expanded to twice the size, each one hanging down right above her knees as her skin was stretched. Her cum only came out faster, pushing Lisa's once athletic stomach to the size of an overweight woman's. Her cum shot lasted for at least 20 seconds before she started to pull her cock from her victim's abused throat.

Several more lines came out on Lisa's face, chest, oversized stomach, and general vecinity.

As Justin's mother's cock began to soften, it reverted back to 18 inches, then 16 inches before loosely hanging between her legs, making soft plopping sounds as it slapped her oversized balls.

Lisa burped and vomited literal gallons of cum on the floor, no stomach acid within them. It was just thick, yogurt consistency, cum.

"Whew, sorry Lisa. I came a little bit early there. The idea of my boy hitting my cheeks did that to me. Don't worry, I've got some more for you," His mother sighed, turning entirely to Justin and showing him her cum and saliva covered crotch. He could also see her pudgy stomach and her absolutely amazing tits, but his mind wasn't on those at all.

"More?!" Justin shouted, his cock shooting precum into the air against his will. "You damn near drowned her! You shouldn't have anything left!"

"Oh baby... I'm just getting started," His mother grinned as she jerked off her cock without hesitation, allowing it to become hard while pointing at Justin. He could see her urethra, and he could see that it was easily 3 inches long, enough to take his cock in it without a problem.

"Now come on Justin, give your mother some love," She grinned wickedly, groping one of her massive balls without hesitation.

That was the breaking moment for Justin. He was broken out of his stupor as he turned around and ran back to his room, grabbing his keys, his phone, and his wallet.

His mother had left from her room, still pumping her cock as she saw Justin run from her. "Justin, where are you going?" She asked, but he had no plans of answering her.

He left the house, hopped in his car, and quickly drove off without another word.

"Damn it... I didn't want to try that insane bastard's experimental drug but... I won't let himself be humiliated like that!" Justin clenched the steering wheel tightly, his cock laying limply against his leg. The shock of seeing his very own mother laughing at his cock was still vivid in his mind.

"I won't... I won't lose Lisa to my own mother!"