I had just turned nineteen and was staying with my Grandma while I went for an interview for a place at university. Finances were tight and staying in her spare room for a couple of days, giving her a little money for my food and board made a lot of sense.
I was only going to be there for the interview and then I would find a flat with a couple of other students, if I was offered a place. In the meantime, she cooked and made sure I had a clean shirt. The day before she had fussed over me, making sure that I was neatly dressed and my shoes were polished, so that I would make a good impression on the interview panel.
This morning, however, I was just waiting for the result of my interview. With no particular hurry to get up I lay on top of the bed in Gran's spare room and, eyes closed, was slowly stroking the length of my cock which. Most mornings would see me waking up with a throbbing erection and this morning was not breaking the pattern.
It felt so good to leisurely stroke my hard cock that I was soon lost in my own little world, centred around my stiff cock and the pleasures of a relaxed, gentle wank. My eyes were closed and my ears filled with the sound of my own breathing, so I never noticed the door slowly opening. I heard a soft gasp and guiltily opened my eyes, to see Gran, in her housecoat, watching me slowly wanking.
Blushing, I tried to hide my cock, and my embarrassment, behind my hands. Unfortunately I had only managed to get my cock fully erect and there was no way that it was going to subside, unless I finished my wank. Gran just stood in the door for a moment and then stepped inside the room, closing the door behind her.
I was puzzled and amazed. Gran was moving closer, until she was able to perch on the edge of my bed. Her housecoat fell open, a little way, displaying a deep cleft between her breasts as they hung down, heavy and ripe.
"You shouldn't stop," she told me, "or you might do yourself a mischief. Here let me help you."
As she spoke, she lifted my hands away from my cock and balls and wrapped her own fingers around my shaft. Her hand was warm and dry as she stroked me with gentle, expert motions. Every couple of strokes, she would curl her fingers around my balls, gently hefting my sac and smiling as she felt the weight of my balls. I knew that I ought to stop her but it felt so good that I said nothing and lay back, enjoying the feel of her hand upon my swollen knob.
"Oh, you naughty boy," she whispered, "hiding your beautiful cock from your Gran."
Gran wriggled and her housecoat slid off her shoulders. Releasing her hold on my cock for a moment, she shrugged the coat onto the floor and I had my first real look at my Gran, naked. Her breasts were ripe, firm but dangling a little with large swollen nipples, puckered and dark brown, but jutting out from the surrounding aureole. Taking my hand she wrapped my fingers around her nipple, which felt rubbery and yielding as I rolled it between my finger and thumb. She closed her eyes and leaned forward a little filling my hand with her soft flesh.
"Oh God, " she moaned, quietly, "Squeeze them, play with my nipples and tits."
The sound of my Gran moaning and imploring me to tease her nipples was turning me on and my cock was even more swollen than when she had opened the door. I lifted my head and I could see the dark patch of hair at the tops of her thighs, obscuring the lips of her sex. I could smell her juices, sharp and pungent, and the coarse curls glistened moistly.
Gran put her hand to her mouth and I heard a click, then she bent her head and my cock was enveloped in warm wetness, her mouth swallowing the whole length of my cock easily. She swirled her tongue all over the head and shaft of my cock lapping at it greedily and then began bobbing her head up and down on my meat. I could feel her mouth and tongue caressing me and she slurped noisily and greedily as though she could not get enough of my young cock in her mouth and throat.
I suddenly realised what the click had been, that I had heard earlier, Gran had removed her dentures, before she started sucking on my cock and the sensation of her gums riding up and down on my cock was, to be honest heavenly. I could feel the pressure of my cum building up in my balls and I guess that Gran had guessed I was ready to cum because she slid my cock out of her mouth and pressed, just beneath the rim of my helmet. The need to cum eased and She spent a moment spreading her glistening spittle all over my stiff cock.
