“NGAH!"
And then I missed.
I'd been holding the back of her calves in my hands, bending her legs backwards until her knees were right next to her shaking tits. The alignment had been perfect for me to exit and re-enter without missing a hitch, but then I must've bent her over a Little too far, or perhaps my aim slid down a little lower than expected. Whatever the reason, I missed her cunt.
And slid four inches straight into her ass instead.
“FUCK-FUUUUUUCCCCKKK!!!"" Mari howled at the unexpected sensation of me filling up her anal canal.
I jerked in surprise, not realizing at first what had just happened. I was immediately aware of how much tighter and drier the snug chute around my shaft felt. Then my right hand slipped off her leg, my whole body pitched forward off balance, and as I literally toppled off my legs and fell down on top of her, my weight drove the rest of my dick deep inside Mari's virgin asshole.
“Mari! Oh, shit!" I grunted at the recognition of what I'd done.
“Fuck my ass, Matty..." she wheezed beneath me. Holding my head to hers and humping her butt off the springy mattress at me.
“Holy cow...
You're in my ass... Fuck my ass... Fuck my ass..."
Automatically, I fucked her ass. I was SO close to cumming already, and from the way she writhed and wriggled beneath me, she was too. Already on the final stretch, I dug my toes into the floor and hammered the hell out of her despoiled rectum. And in less than a minute I found myself unable to hold back the floodgates anymore.
“AAAAAARRRRRRRRGGGGGGHHHHHH! !!!" I howled as I started dumping gallons of scalding jizz into the depths of Mari‘s virgin butthole.
“AAAAAHHHHHHHHHHHHHH!!!"" She howled her own release, triggered by the feeling of my hot seed spilling into her guts for the first time.
Together, we thrashed and bucked and quivered until every Last drop was spent. Mari's inner depths - her “sacred core" as Naimh put it - was filled with a lake of sperm. I remained collapsed on top of her, shivering from the force of my ejaculation while she hummed beneath me and held me close. And only when we both finally caught our breath did
I finally pick my head up and gawk down in amazement at this incredible young woman.
"I can't believe that happened," I marveled.
“I can't believe how easily he slid in your ass," Belle exclaimed in amazement. "Do you have any idea how hard it's been for me to train myself with butt plugs?"
Mari Laughed. "I wasn't expecting it either.”
I shook my head and chuckled.
“First you became the BJ Queen of the BTC just like that." I snapped my fingers for emphasis.
“Then your Lush pussy is just so soft and warm and inviting for my big dick. And now this?"
Mari giggled at the feeling of me flexing my dick inside her rectum for emphasis.
I shook my head again in disbelief.
“Without any lube, you just swallowed my monster all the way up your ass. Seriously girl, you've got a body built for sex. You're amazing."
The color immediately drained from Mari's face. Her smile dropped away, and her eyes went wide. And in a weak, pained voice, she whispered,