Cuckolding My Stepson With His Nerdy Lab Partner
Teaching Timmy a lesson about sharing
They were both 18 years old and about to graduate. This chemistry project wasn’t going to affect their final grades. Still, it was the principle of the matter. My stepson Timmy was making his lab partner Raj do all the work, and that’s just not right.
Timmy needed to be taught a lesson.
They were in the basement with their materials scattered on the table. Raj was wielding a hot glue gun, standing over a paper mâché mountain while Timmy sat in front of our 60” TV playing Fortnite. I came down under the guise of doing laundry.
Raj noticed me out of the corner of his eye, and coughed nervously, spilling hot glue onto his little pinky.
“Ahh!” he yelled.
I dropped my basket of dirty clothes and rushed over to him. “Are you alright?”
He nodded without making eye contact.
“Here, let me look at that.” I took his chubby hand. It was deep red where the glue had dripped, but the skin wasn’t damaged. He shifted his feet. Though the room was cool, his armpits were damp, and beads of sweat were forming at his temples.
Raj was adorable, with thick glasses, bushy black hair, and a belly that didn’t quite fit under his vintage Batman T-shirt. He looked like a boy, but his manly musk gave away his true age.
As I examined his finger, he struggled not to stare at my tits. I was wearing a cap sleeve shirt with the top two buttons undone and the bottom tied off to reveal my midriff. No bra underneath. My curly auburn locks were tucked under a handkerchief to signify that I was doing chores.
“I’m ok, Mrs. H,” he said. “Thanks.”
Timmy paused his game and lept over the back of the couch to join us.
“Hey, Katina,” he said, ignoring his injured friend. I’ve been married to his father for over seven years now, and he still insists on calling me by my first name instead of “Mom.”
It probably makes him feel less weird about ogling me. Twice this month, I caught him jacking off to pictures of me in a bikini from last summer’s Hawaii trip. Last week, he “accidentally” walked into the bathroom while I was taking a shower.
Honestly, I find it flattering, and if he were a little more mature, I might take his young cock for a spin. Maybe that will be his graduation present. Today, though, he needed to learn a lesson about friendship.
“Hi, Tim,” I said, without turning my attention away from Raj’s hand. “It looks ok, but I think we should run it under cold water just in case.”
“If you say so, Mrs. H,” he said.
“Please. Call me Katina.”
“Uh, ok.”
I led him by the hand into the laundry room.
Tim started to follow us, but I stopped him. “This might take a few minutes,” I said. “You might as well go back to your videogame until I get him all fixed up.”
“Uh…”
I shut the slotted accordion doors in his face.
Instead of going back to the couch, he remained just on the other side of the door, peering in through the slots. As I knew he would.
“Now, let me see that hand,” I said to Raj as I held it under the faucet in the large sink next to the washing machine.
The cold water caused Raj to jump, but I held his hand in place.
“Sorry,” I said. “I know it’s chilly, but we really need to keep it under running water for at least 30 seconds.
He squirmed, though I could tell it was more out of nervousness than physical discomfort.
“Ok, that should do the trick. How does it feel?”
“Better, but, uh…” He was struggling to catch his breath. “…the shock of the cold…” He plucked an inhaler from his back pocket and took a long puff.
“Well, if you’re cold, maybe there’s something I can do to warm you up.”
I brought his injured pinky to my lips, kissed it, then gently took it into my mouth and sucked. He immediately started sweating again.
“Ok, I’m… I think I’m warm enough. I should probably… I should get back to — ”
Before he could finish his sentence, I pulled him in for a deep, wet kiss. The tension in his jaw told me this was the first time a woman had ever stuck her tongue in his mouth. His sweet innocence was making me wet.
After caressing his smooth face and running my fingers through his hair, he finally began to relax. I groped the outside of his jeans. His cock was growing.
“Mrs. H,” he said, pulling away. “What’s happening right now?”
“Call me Katina. And I’m going to fuck you.” I knelt in front of him and unbuttoned his pants.
“But… you’re my best friend’s mom.”
“Stepmom. And Timmy hasn’t been all that great of a friend to you lately, has he? Making you do all the work while he sits there playing video games?”
“Maybe, but I don’t see how this…”
He trailed off when I took his cock into my mouth. As I circled the head with my tongue, I cradled his balls with one hand and grabbed onto his doughy ass with the other.
His monstrous dick was already rock-hard, and it continue to grow the more I sucked it. Eventually, it became overwhelming, and I needed to come up for air.
“Oh, Raj,” I said, as saliva poured out of my mouth onto the cement floor. “Your cock is amazing. Much bigger than either Timmy’s or his father’s.”
From the other side of the door, I felt Timmy’s eyes on us. I could smell his envy. His lust. Maybe he was even touching himself.
“Really?”
I nodded before taking him back into my mouth. Once I got used to his substantial girth, I could relax my throat and bring my lips all the way to his base. Through the throbbing veins in his cock, I could feel his pulse quicken. At first, I thought he was about to cum, but then I realized he was hyperventilating again.
I rifled through his pants pockets, which were down around his ankles. After finding his inhaler, I handed it to him without taking his dick out of my mouth.
He took two long hits, and his knees got wobbly. Now he was the one who needed a break.
I came up from the floor and gave him another passionate kiss. “Have you ever fucked a woman, Raj?”
He shook his head.
“Don’t worry; I’ll teach you.” I unbuttoned my shirt and guided him to my tits. My nipples got hard in his hot, clammy hands.
“You have an amazing body, Mrs. H.”
“That’s Katina. And thank you, Raj.”
I led him by the hand back to the carpet, which happened to be right in front of the door. Timmy was definitely jerking off on the other side of it — I could hear the slapping of skin.
“You might want to take another hit of that before we get started,” I said to Raj. He sucked down another blast from his puffer.
“Now lie down on the rug and let me take care of you.”
He obeyed. After removing my yoga pants and panties, I climbed on top of him. He was still hard, and I was still wet, but I teased him by rubbing his cock across my pussy lips before inserting him inside me.
He took a deep breath but didn’t need his inhaler this time. Just in case, I started slow, riding him as though he were a tortoise, not a stallion. In this position, his enormous cock was almost too much for me to handle, and I needed to be warmed up, too.
But it didn’t take long for us to get going. He mostly remained still while I bobbed up and down on him. No man had ever filled me up as much as this high school senior. No man had ever made my pussy feel this good.
He was a virgin, and I knew he wouldn’t last. But I didn’t need him to.
My orgasm came fast and hard, hitting me like a tsunami.
“I’m cuming!” I shouted as my pussy quaked around his mighty dick. “Oh, fuck, I’m cuming!”
Raj’s eyes rolled back, and he held onto my tits for dear life. I thought he might be hyperventilating again, but then his cock detonated inside me.
As the smoke was clearing, the door burst open, and Timmy fell into the room with his pants around his knees. Apparently, he had leaned on it too hard while he was taking in the show.
For a moment, the three of us sat there in awkward silence. What Raj and I just did was incredibly inappropriate; on the other hand, Timmy had watched us like a total creep, so there wasn’t much he could say.
As the adult in the room, it was up to me to smooth things over.
“I’m sorry you had to see that, Timmy, but you were taking advantage of your friend. If you were both doing equal work on your project, he might never have been burned by the glue, and this might never have happened.”
Timmy looked down at the floor shamefully. “I’m sorry, Raj. I promise I’ll do my fair share.”
“I forgive you.”
I put a hand under each of their chins. “See, that wasn’t so hard, was it? Now how about the two of you sit back and let momma fuck your brains out.”
The three of us spent the next several hours fucking like animals. We took a break for grilled cheese sandwiches and tomato soup and then got right back into it. By the end of the night, both Timmy and Raj learned just how good they could be when they work together.
Unfortunately, they ended up getting an “F” on their science project. They never got around to finishing it, because we spent the whole time fucking.