Nanna's needs - Part 1

I still remember my Nanna fondly, even though she's not with us anymore. She always had time for me, and was more of a Mom than my actual Mom was.
It all started when I was young, but not in the physical sense until later on.
As a kid, we'd sleep-over at Nan & Grandad's at the weekends when Mom was having countless men home.
The sleep-overs were fun as we got to do almost anything we liked. I even learned to bake from Nanna.
Night times were a little crowded in their house as they had a lodger, "Gerry".
Nan and Grandad never slept together, but I never knew why until I was older. Grandad had had an affair, but they stayed together in those days, for the "Sake of the kids".
Anyway, on the sleep-overs I would sleep in Nanna's big king-size bed, so there was plenty of room. I suppose thinking back on it now it would seem a little weird to the outsider, but it was the norm for us.
Nanna had a nice slender figure, long chestnut-brown hair that she only took out of a bun or ponytail when she was ready for bed.
I was still sleeping-over at the age of 15, having the odd stiffy lying next to her, knowing she wore nothing under her nightie, finding that out when she was at the window one night and the moonlight made her nightie appear see-through.
Getting the horn at 15 in your Nanna's bed could've got embarrassing. If Nanna knew, she never said anything.
So, fast-forward two or three years, when I started an apprenticeship and had to go to college. The college wasn't far from Nan & Grandad's, and when Nanna suggested I move in with them to be closer, I thought great, I wouldn't have to be up so early for college. Gerry had moved out by this time, so I had his old room which overlooked the back garden. It bordered a little stream that ran along the back. They never fenced it off, as they said it gave the garden some ambience.
Now, I'd been staying there rent free for about six or eight months when we found out that Grandad was going blind. He'd always been somewhat deaf having to have the tv on loud to hear it and also couldn't hear anyone else for that matter either.
I'd only ever been with two girls and those were only for a couple of months or so. I wasn't a virgin, but wouldn't say I was an expert in the bedroom either.
"Anyway", one summer evening I was lay in bed with the tv on low watching a porn video and the inevitable happened being a teenage boy, I started to take it in hand.
Now, Nanna was a light sleeper which I'd forgotten about and so, as I was stroking my shaft I could hear footsteps coming down the landing. I fumbled for the remote to switch it off, but in only the light from the tv I dropped it, and at that moment Nanna, tapped on the bedroom door.
"Hold on Nanna!"
"Are you ok John?" She asked.
"Yes Nanna, I dropped the temote control."
And with that she entered.
"Stay there. I'll get it." She said, not noticing what was on the tv at first. Then, as she passed it to me, glanced down at the tent I'd made in the bed, and all she said was "Oh!"
She turned to the window silhouetted once more by the moonlight shining on her slender curves and said, "I heard noises and wondered if you were ok." Then after a slight pause, she expressed.
"I can cerainly see you're fine!" And gave me and my "Tent" a beaming smile.
Then, she said something that totally through me.
"Would you like some help with that?"
Asap, I said "Nanna!!"
"John, I'm only human and have needs the as the next person." She stated.
"But Nanna, you're my..." And before I had chance to finish, she began to walk towards the bed dropping her silk dressing-gown to the floor...."Your what, John?"
She was now sat on the side of the bed.
"My..."
Once again, before I had chance to finish, she placed her left fore-finger over my lips, "Shhhh!!!"
Then, with the same hand lowered it down to where the sheets were just about hiding my now semi-hard manhood.
She didn't pull the sheets back, but searched under it to find my twitching penis.
"My John, you have grown." She said with a smile. "Is it a pressie for Nanna?"
Without thinking or saying a word, I just nodded.
"Mmmmm, let's see what you're giving me then."
Still cupping my semi erect penis, she pulled the sheet back with her other hand.
"Oh my!!" She gasped.
Then without any hesitation, she went down on me, teasing my cock licking pre-cum from my meatus.
Nanna was so good at giving head, I'd somehow forgotten, or didn't care who was sucking my dick.
After a good ten minutes or so, I was ready to explode.
"Oh Nanna, I'm gonna cum!!!"
Her sucking got much faster as I said it. I placed my hand on the back of her head, my fingeres running through her chestnut-brown hair.
"Oh god!!!!" I called as I was about to cum in my Nanna's willing mouth. I exploded, she carried on sucking as I shot another load, and another.
Nanna cleaned every drop of cum from my cock and balls.
I couldn't what had just happened, I'd just had one of the best ever blowjobs, and it was off my Nanna.
She wiped her lips, leaned forward and kissed me with her soft pouting lips. I could smell myself on her, which felt such a turn-on.
She grabbed my hand and said, "Come John, it's Nanna's turn.
I quickly pulled my shorts back up and followed Nanna......