I remember not so long ago, Akamaru was only a pup. He used to sit on my head under my jacket's hood and go everywhere with me. However, he's bigger now and he isn't allowed in the buildings (well accept at home). It amazes me to think that now he's finally big enough to do that.
I think it was during the chuunin exams that we'd first done anything like that. It'd been a long day. Akamaru and I had spent the whole day training and learning new jutsus. When we finally got home, I smelt like sweat and, I guess, hormones because when I sat Akamaru down next to me on the bed, he insisted on humping my leg! It was a little unusual for him, but I wasn't complaining. I was only half surprised when I started feeling aroused by what was happening. I moved a hand down to rub my hardening member through my pants and moaned quietly. Akamaru had given up on my leg and was now whimpering and licking my hand.
'What is it Aka?' I moaned softly. There was a look in his eyes that I knew better than any other. He wanted something from me. I decided that I'd ignore him for once and continue masturbating. I un-did my pants and pushed them and my briefs down so that my member could stand freely. As I lied back and began stroking my rigid member, Akamaru moved to sit between my legs. A slightly louder moan escaped my lips when the small pup began to lick me.
'Akamaru…' I moaned as I moved my hand away. It felt amazing! Of course at the time I was still a virgin and had only masturbated a few times, but feeling Akamaru's wide, wet tongue against my shaft was incredible! I pressed my head back into the pillows and moaned loudly as I came.
As the years went by and Akamaru grew, so did I. I'd become a little more muscular and, needless to say, that part of my anatomy grew as well. Akamaru was fully grown now and he could do more than just lick me.
'Akamaru! Where are you?' I called out. It wasn't long until the once tiny pup bounded into my room. I grinned and closed the door before climbing onto my bed. Akamaru knew exactly what I wanted from him, so when I got on all fours he jumped up onto the bed and mounted me as if I were another dog. I moaned as I felt his hot member push against my entrance. Akamaru shifted slightly before forcing his huge, rigid appendage inside of me. A loud moan escaped my throat as he began to thrust in and out quickly. I reached down and took my own member in my hand and stroked it, panting slightly. I could hear Akamaru panting a little over my thoughts of 'fuck this feel great!' and 'oh god!!'. It wasn't long before the two of us came and collapsed on the bed.
'Good boy Aka…' I panted as I stroked his side tiredly. I smiled and fell asleep knowing that he'd still be there when I woke up.