Forbidden Friction [Mf, taboo]

Ally was my niece through a former marriage. She stopped by my place last month before heading back to college for her junior year. I thought she just wanted to say a quick goodbye since we had gone to a couple of baseball games together over the summer, so I didn’t hesitate to let her in even though I had a friend I made the night before still sleeping in my bed.

Ally walked by the door to my bedroom and saw the young woman’s bare back and her pile of clothes on the floor next to the bed. She raised her eyebrows as she walked over to the couch. “Based on her style, she’s a little young for you, Uncle Alex.”

I tried a sheepish grin. “Ah, I don’t think so. She’s getting ready to head back to college herself–it’s nothing serious.”

“I didn’t realize you liked girls who were so much younger.”

I really didn’t feel comfortable discussing my sexual interests, so I tried to change the subject. We talked a little about Ally’s upcoming semester.

After she had started college, there was always a bit of tension between us when we’d go out that I couldn’t quite pin down. People seemed to think we were together and would give me dirty looks. Ally appeared to like that attention. She was a very attractive girl, but outside of those long nights where the mind went to dark places while I stroked myself I never considered crossing the line.

We were laughing about some stupid questions she got from her new roommate when the girl in bed called out in a still drunken voice, “Hurry up, Daddy. I need more cum.”

I blushed and ran over to shut the door, telling her to keep quiet before I closed it.

“‘Daddy’, huh? I’m learning all kinds of things about you,” Ally said as she shook her finger at me.

It felt awkward to sit back next to her, so I took a seat in my club chair facing the couch at an angle.

“Yeah, I’m a little twisted, I guess.”

“Did Aunt Karen like that?”

I sighed, understanding she wasn’t going to let this go now. “She did. She was a bit of a dirty girl, especially at your age.”

“You know, we got a little drunk at dinner one night and she told me how you’d make her orgasm using an unexpected body part. But she wouldn’t tell me what it was.”

I laughed and then said, “I don’t think we should talk about this.”

Ally didn’t laugh and moved one hand up her skirt and between her thighs. “No, I think we should Uncle Alex. I want to know more about it. I’ve already thought too much late at night when I can’t sleep not to know the truth.”

“Why have you thought about it?”

“Do you really need me to answer that?” She got up and slowly walked over to me.

I held up my hands to try to stop her, but she pushed them down and held on them as she rubbed a finger over my knuckles.

“I’m sure these big hands could do the trick. And your long fingers indicate another part that would be more than adequate. Your full lips make me think they’d feel great down there. But I don’t think it was anything obvious like those parts.” She started rubbing herself in front of me.

“Ally, we can’t.”

“Whatever part it is, I bet you would not be doing anything that wrong. I mean, you wouldn’t be going inside me or anything like that–Aunt Karen said that she discovered it because she didn’t want to have sex yet. She said she felt like such a whore getting off that way.”

I couldn’t hide being aroused any more and Ally took note. She gave me an encouraging nod to tell her what she wanted to know.

She pulled up her skirt to reveal clingy pink panties, showing the outline of her lips. The crease in-between was showing a sign of her interest, something I really enjoy about these younger women.

“Where do I need to put my covered pussy?”

I closed my eyes and leaned back. I gave into my lust, damn the consequences.

“My left knee. It’s perfectly contoured for you to rub yourself against.”

“Thank you, Uncle Alex,” she whispered as she lowered herself down, still holding my hands. I felt her nails dig into the back of my hands as she made contact with my knee.

“You’ll want to move a little to your right and then move your hips back and forth.” I couldn’t look at her–I kept my eyes closed.

“Yes, sir.”

I felt her slide over and then a little gasp from her lips as she found the ridge her aunt had enjoyed so many years ago. She pushed into my hands to brace herself as she began rocking against my knee. I felt it start to get wet as her lips moved around the ridge, through the fabric. The burning started shortly after as she greedily pushed down harder against the bone, generating painful friction that made me harder.

It was around this time that I realized I could smell my niece’s hungry cunt and I squeezed her hands as she moaned.

“Oh god, my pussy is on fire but I can’t stop. I’m going to be raw from this!”

I released her hands and moved my hands down to her hips to stop her. I opened my eyes and looked at her–she had transformed, her expression full of a familiar longing tinged with pain. “Take it easy for a second. Just stop rocking. I can help you out and minimize the friction.”

I held her narrow hips, squeezing slightly into her small ass through her skirt, as I pushed my knee up between her legs. I stared as he looked at me wide-eyed, completely under my control. I then barely moved my leg up and then around, pushing her lips around, teasing her clit. My knee was completely wet now. I reached up and grabbed her left hand, guiding it between my legs until she was touching my cock through my pants.

“Do you feel what you’ve done to me?”

“Yes, Uncle Alex.”

“Grab the head and see if you can make my pants wet.”

I felt her fingers wrap around the tip of my cock and I continued to grind into her pussy after returning my hand to her hips. Her moans increased in volume.

“I’ve never had a cock inside my pussy. I want you to be the first.”

I grunted as I thought about how close to reality my forbidden desire was.

I pushed harder against her pussy and slid my hands under her skirt, feeling her panties and squeezing her ass harder.

“This is all I’m going to think about now. You own my tight teen cunt.”

“Fuck Ally…”

Satisfied laughter erupted from her as my cock exploded against her fingers. I groaned as the cum my niece made spurted into my boxers over and over as her pussy made my knee even wetter.

I groaned as I grabbed her hips hard, pressing my knee in further and then forcing her to move her back and forth. No more words, just sounds, as I felt her thighs start to quiver.

She shrieked after about a minute and I felt her go limp. Her scent filled the room as she fell forward into my arms. I pulled her up until her head rested on my chest. Once she was secure, I ran one hand through her fine blonde hair and slid the other hand between her legs for a moment–her panties were completely drenched. I wanted to slip my fingers inside her, but restrained myself.

For now.

Source: reddit.com/r/sexystories/comments/e82mbo/forbidden_friction_mf_taboo