It was a Saturday afternoon. Mom was out shopping with Aunt Carol, but my niece didn’t feel like shopping. Instead we were hunkered down in the living room watching cartoons.

“Do you have a favorite pony, Uncle Rob?”

“Oh, Twilight Sparkle I guess; she’s a dork like me.”

“Really? She’s my favorite too!”

To look at Jodie, I couldn’t imagine anyone ever calling her a ‘dork’. She did wear glasses (with green frames, very cute!), but straight blonde hair framed a face of elfen beauty, big blue eyes, freckles, a cute nose and full lips. And a nice body. (Not that I could see much under her baggy top, but her legs were mostly bare below her pleated miniskirt. And nice feet. Okay, so I have a foot fetish.) Her chunky wooden clogs sat nearby on the floor as we sat nearby on the couch.

“But people tease me because it’s a show for ‘babies’.”

“I’m not a baby.”

“But you’re still cool; not like ... some people.”

Jodie made a sad thoughtful face and I was concerned.

“Jodie, did somebody hurt you?”

“It’s that’s asshole Bobbie Joe at school. I asked him out, and he just said I was ugly and dumb. And my girlfriends all think I’m some kind of dyke.”

“Not words I would use to describe you...”

Jodie managed a smile.

“But Jodie, isn’t it traditional for the boy to ask the girl out? Unless it was a Sadie Hawkins thing.”

“Yeah, I guess...

“But you know what, Uncle Rob? Being a girl sucks! All this drama, and boys acting like dicks, and I bleed every month ... I just wish...”

Jodie reached for my cock.

“ ... I had a dick.”

Two thoughts (as my neice stroked my cock hard in my pants). One: does Jodie really want to be a dude? And two: my cute niece is stroking my dick!

“Jodie, um ... I don’t know if...”

But now my cock was free, and it didn’t help the way Jodie looked at it. Apparently Jodie had never seen a penis in real life, because she explored it curiously, rubbing it between both hands and forearms and kissing the tip. Then, as it started oozing pre-cum, Jodie took it by the base and started shaking it with both hands. If I was 7 inches on a good day, I was 7 and a half now!

“Now this is cool,” Jodie said, shaking my cock in her hands and flinging pre-cum all over the place. “I wish I had one of these.”

“Jodie, be careful...!” I said. “You’re gonna make me...”

Jodie looked at me curiously, still shaking my dick.

“Cum!”

Unfortunately, my first shot went right up her right nostril, followed by another stream across her chin and one that splattered on her glasses.

“Yuck,” Jodie said, taking off her glasses, “what is that stuff?”

“That’s semen,” I replied. “It’s a fluid filled with little tadpoles called sperm, that swim up inside a girl to make a baby.”

Jodie looked at me curiously as she wiped off her glasses.

“Hey Uncle Rob, I’m a girl.”

“I’ve noticed.”

“Uncle Rob ... do you like me?”

This from a girl I’d just nutted all over.

“Sure, but Jodie ... do you really want to be a dude?”

“I don’t know,” Jodie said, moving astride me and grasping my cock again. “Maybe I could just ... borrow this sometimes?”

OMG. Wood!

Now Jodie was pulling her panties aside, and aiming my knob at her coochie.

“I’ve stuck things in there before,” Jodie said; “I think I know where it goes...”

Warm petals cradled my helmet, then wet warm flesh sunk down around me.

“Do you like my coochie?”

I was speechless. Soft folds, moist and wet, embraced my penis as Jodie lowered her hips down toward mine. Sure I’d been with a girl before (if that counts ~ her laying there bored like a dead fish). But this was incredible! Jodie seemed enthralled by the sensation of being impaled, and gave a sensuous “ohhhh!” when my balls met her ass.

“I think you’re about here,” Jodie said, resting her hand on her tummy, just below her belly button.

“Goddamn, Jodie ... I’ve never been so hard!”

Jodie giggled, and rolled her hips around me. Heaven!

For a good minute, Jodie worked me with her hips.

“It feels too good...” I admitted; “gonna cum...”

Jodie looked at me curiously.

“Birth control...?” I asked.

“Birth what...?”

I tried to move, but Jodie tucked her soft feet under my thighs, locking me inside her.

“Jodie, this is dangerous! I could get you pregnant!”

“I know,” Jodie said, humping me faster, “let’s have twins! I want a really big bump!”

My cum was boiling up now; there was no stopping it. I thought to grasp her hips, pull her close, roll her over and cum on her tummy, but in the process I just pushed up her top to reveal her braless chest. Small but beautiful, two B-cup cuties danced before me.

“And you can make these bigger too,” Jodie said, fondling her tits, “when you fill them up with milk.”

And the dam broke. Holding Jodie by her hips, I thrust up as she pushed down, and pints of my cum blasted upward into her belly. Now Jodie stilled her hips, but continued milking me with her muscular tunnel.

“Or maybe triplets,” Jodie said, leaning in to let me suck her nipples. “But I’ll need another tit if we have triplets.”

I was going soft for a moment there, but now I was hard again.

I continued sucking Jodies sweet nips a moment longer, then went ahead with my earlier planned maneuver. Jodie squealed in surprise as I rolled her underneath me, then squealed again as I started pumping her missionary-style, bringing her feet up to my ass to pull me deeper.

“You’re so hard...!” Jodie gasped, as I plunged in deep. “You’ll break my little pussy!”

“Don’t worry,” I said, stabbing at her cervix, “pussies are strong. All muscle.”

Wet, slurping, smacking sex. Behind us, Rainbow Dash said she wanted something to be 20% cooler, but I couldn’t imagine anything better than my niece’s sweet pussy wrapped around me, clenching, squeezing, trying to catch and milk it on every inward thrust. And she was so cute! She just looked awed as I plunged in and out of her, amazed to feel this happening to her body.

Minutes. Nut-slapping sex, rising ardor. Grinding, thrusting, smashing.

Rising up to grind my cute niece deeply, then...

‘Fuck! Cumming again...!”

Jodie gave a little gasp, then clenched my cock tight as I came inside her. So much! I almost felt guilty inundating my cute niece with so much semen.

“Jodie,” I said finally, slipping out of her gooey hole, “maybe we should go up to my bedroom. I’d hate to see your mom ~ or my mom ~ cathing us getting it on like this.”