It had been a week since the doctor's visit. In his words, "He's fine. In fact, some would say he's far more than fine. Medically, there's nothing wrong, but I'm afraid I can't explain it."
Anna had taken some time to process her new situation. Maybe things wouldn't be so bad. He was healthy, and he seemed happy, So what if he was hung like a mule already? It's not like she had to worry about him bringing people home yet.
"Mommy..." Tommy's voice squeaked out.
"Yes honey?" she said while moving some things around in the cabinet.
"My uh...they hurt..." he said sheepishly, and pulled his pants down.
"Oh sweety, I'm sorry, did you sit weird an-" it seemed like the surprises were never going to end with this. Hanging below the boy's enormous cock was a painfully-overloaded sack. His testicles were twice the size she remembered them being yesterday, and a fourth bigger than they'd been this morning. They were eclipsing baseballs at this point. He looked up at her, clearly in pain.
"Oh, honey...I..." she swallowed, realizing what this meant. She had remained hopeful that because of his age, it would behave like a normal one would, just...bigger. Much, much bigger. She had hoped dearly that she wouldn't have to deal with this until puberty.
But here they were.
She made up her mind. It didn't matter. Her son was in pain, and she needed to help.
"Honey, I need you to go sit on the couch, okay? Mommy will help."
He nodded, and walked over to the couch, belabored by his enormous swinging nuts.
She followed him, and after he sat down, gingerly, she removed his pants letting his swollen, fat balls breathe a bit.
"Mommy's going to teach you how to make these," she cradled his massively overfull testicles, "feel better. Okay?"
Tommy nodded again, still wincing from her touch.
"First, you need to put your hand on your penis." He obeyed, albeit very shyly.
"Okay, now you're going to have to hold it kind of tight, okay?"
"Okay..." his voice trailed, and he gripped his thick shaft a little tighter.
"Alright, now move your hand back and forth."
He started to rub his hand up and down his dick, as if he were bussing a table. Not quite what she'd had in mind, but maybe it would work.
"Okay, so now you're uh...going..." her voice lost its flow, as she noticed the massive dick in front of her was growing. Getting longer, fatter, and starting to straight up. Her horse-hung son was getting hard. It throbbed and pulsed as his hand worked over it, until it was like a steel pillar, bobbing slightly, nearly pressed into her nose. She couldn't even begin to estimate how big he was now, it was off her personal size scale.
"Mommy! Why...why is it bigger?!" Tommy sounded frightened.
"Sshhh, it's okay baby. That's normal, that's normal. This is going to make your testicles feel better. I promise."
But after 6 minutes or so, it seemed that was not the case.
"Mommy, I'm tired and they still hurt..." He looked on the verge of tears.
"Fuck..." she cursed to herself under her breath. "I wanted you to be able to do this for yourself, but...Mommy can help this time, okay?"
He nodded, teary-eyed.
"Okay, Anna..." she thought to herself, "It's just a penis. You've dealt with literally dozens. It's fine."
At that moment, a different voice in her head blurted out "Yeah, but none of them were even half this big. Ironic the manliest dick is on a little boy, huh?" She shook her head. With determination, she reached out, and grasped her son's rigid, towering cock. It was so warm, red hot to the touch. She noticed passively that there was close to an inch gap between her thumb and middle finger as she attempted to enclose its freakish girth.
"That is one...fat...dick..." she whispered aloud. As she began stroking, she noticed Tommy got a far away look in his eyes. Good, it was working.
She started slowly, but ramped up the pace as she felt her arm start to tired slightly. She didn't want to hurt him, but she needed to get this over with. "I guess I'm just not practiced with this much cock," she heard herself think. She bit her lower lip.
And then she felt the dampness between her legs.
"Shit...it's...just confusing, that's all," she reasoned with herself, "I'm pumping...um, touching...this huge, fat co-...this penis, and it's mixed signals. It's just my body being confused."
But if anything, her body was the least confused part of her. It knew what it wanted. She felt her lower lips throb as she continued to stroke her son, faster and faster. It was like with each completed movement, she had pushed more of these invasive, sexually charged thoughts into her psyche. Her nipples hardened in her shirt, the dampness soaked her jeans. She all but moaned as Tommy's breathing increased. Faster, faster. Her pace had hit a fever pitch, and now tugged on his distended sack, causing his full balls to gently slap her hand on the downstrokes.
His breathing had become shallow and irregular, she saw the massive, engorged head swell even further, turning a deep red.
And in that moment, Anna broke.
"Oh to HELL with it," and she jammed the drooling head of her son's enormous cock into her mouth, getting even further turned on by how wide it ratcheted her jaw open. Her son was too much for her, and it was irresistible. Her other hand latched on to the shaft, and worked in tandem to truly milk her son dry.
He let out a sharp cry, and she knew it was time.
"Yes, yes, come on baby boy! Cum! Cum for me! Cum for Mommy with that big, fat, nasty dick!" she practically screamed in her head. And cum, he did.
She felt the surge move through his cock, from the base all the way to the fat tip she was nursing. She felt it dilate like it was moving a fluid with the consistency of a milkshake. She was not far off. The first spurt to launch into the back of her throat was pungent, alkaline, and so incredibly thick. She quickly realized she would not being able to swallow in time, so she did the only thing she could think of: open the back of her throat, and let him cum directly into her stomach. Her eyes watered, and her jaw hurt, but she managed to push another inch of pulsing, ejaculating boy cock into her mouth, pushing the emission directly down her throat.
She could feel the heat of his load sliding down directly into her.
After 8 or so impossibly thick ropes, it all slowed. She felt him start to go soft, and on the come-down of her madness, she managed to sneak a peek at his balls: they looked half their previous size. It had worked.
Eventually, she managed to remove the obscenely large phallus from her mouth, a cum trail still connecting her chin to the tip. She looked at Tommy, smiled weakly, and gave it a kiss. "Good boy, sweetheart."
Tommy nodded weakly, but just laid there. Anna smiled, "Men," she thought, "One and done, then time for a nap." Sobriety hit her like a train as she realized what she'd done. She had just given her son head-No. She had allowed her son to throat fuck her. That was the only way to describe it. She placed a hand on her gut, ever so slightly distended from the huge intake of cum, and patted it.
No going back now.