The next morning was a school day and I showered and dressed for school as Granddad got breakfast for us both.

As usual Granddad gave me a big hug when I entered the kitchen but this time his touch was a lot more familiar and his hands squeezed my bum as we hugged.

"You're looking very sexy this morning Sweetheart,” Granddad told me as we ate our breakfast. I felt myself blush but I did feel different inside somehow, like I had grown up over the weekend.

The dressing gown that Granddad had on was open at the front and I could see that he didn't have anything on underneath. When I stood up to clear away the plates I could see his cock standing up hard in his lap.

Taking the belt from his dressing gown he ordered me to turn around and started tying my hands behind my back with it.

"But Granddad I'll miss my school bus,” I warned him looking at the time.

"Well you have a choice,” he told me. "Make me cum and I'll let you go to school but if you take too long and miss the buss I'll just keep you tied up here and play with you all day.”

I really needed to go to school as we had a test in maths that day and it counted towards our year-end grades. If I missed it I would get poor grades and might have to drop a class, which I didn't want.

Granddad undid the front of my blouse and lifted my bra off my breasts while I stood thinking but it was obvious that in his present mood there was no reasoning with him so I knelt of the cold hard floor of the kitchen and leaning forward I took his cock into my mouth and started licking and sucking, determined to get him to cum as quickly as possible.

He groaned aloud as I started bobbing my head and I could feel his cock leaking stuff into my mouth. Looking up I could see he had his eyes closed and his head was leaning back. I started rubbing my breasts against his legs, which felt good to me and looked up to see the time. I needed to leave within 3 minutes or I'd miss my bus.

Using my whole mouth I sucked and licked at him frantically and at last felt his cock stiffen and spurt cum into my mouth. As I sucked he pulled back and out of my mouth. Cum spurted over my face and down my front covering my breasts and my bra before I managed to get him back in my mouth where I sucked him till he had finished.

Standing up I turned my back and felt Granddad untie me. I rushed over to the sink to grab a towel and wiped my face clean and felt my bra being pulled back down over my still wet boobs.

"You haven't got time to clean up,” Granddad said as he pushed me towards the door. "You'll miss your bus.”

I was still buttoning my blouse as I rushed out of the door, the sticky cum on my breasts and stomach feeling cold and clammy as it stuck to my clothes.

All day I could feel the dried cum on my skin. I didn't want to try washing it off in the school toilets as someone might have seen me. Despite that I did well in the Maths test and by going home time I was more relaxed.

"What you doing after school,” Nadia asked me as we packed up after our last lesson.

"Nothing,” I said, "Why.”

"Can I come home with you and do our homework together,” Nadia asked. "I don't understand some of it.”

Nadia often came back to my house so I wasn't surprised she had asked and we travelled back on the bus together talking about the usual school things.

Granddad was out when we got back so we got drinks and headed up to my bedroom to do our work. I was horrified when we walked in and there on my bedside table was one of the buzzing things along with a note from Granddad.

With my face burning I read the note, which said he'd be back later and to have fun.

Nadia had picked up the buzzing thing and was turning it on and off as she held it.

"You lucky thing,” she exclaimed. "How'd you get your own vibrator? I have to use my toothbrush to make myself come! Do you do it often? I bet it's more fun with a vibrator than a toothbrush.”

"A toothbrush?” I asked. How can you do that with a toothbrush?”

"Well it's ok for you,” Nadia said. "You don't need to use a toothbrush if you've got this but the rest of us don't have one so all we've got is our fingers or a toothbrush. Can I try it?” Nadia asked smiling.

"Err yes, if you want?” I stuttered still trying to think of an answer to her original question of where I had got it. I watched as Nadia pulled up her short skirt and turning on the vibrator held it lightly against her briefs, running it up and down as she did.

"Wow,” she said. "It's much better than a toothbrush.”

I watched fascinated as she used the point and pushed it against herself. If she had been naked it would have gone inside her but her briefs were in the way.

"I still don't see how you can do it with a toothbrush,” I asked lamely.

"An electric toothbrush silly,” Nadia said laughing. "It vibrates but nowhere near as nicely as this does. Shame we haven't got two then we could do it together.”

Knowing that Granddad had got more than one I told her I'd be back in a minute and quickly found the bag of bits and got another vibrator about the same size. By the time I got back to my bedroom Nadia had pulled her underwear aside and was using the vibrator on her naked pussy.

"Oh!” She said in embarrassment. "I didn't hear you with it buzzing.”

We both collapsed in fits of giggles and as she raised her skirt and touched the vibrator against herself I did the same. It felt good but nowhere near as good as when Granddad had done it.

AS the warm feeling spread through me I relaxed and began to enjoy what we were doing and lose my self-consciousness about it.

"It feels better when someone else does it,” I said without thinking.

"Who?” Nadia asked with a wicked smile on her face.

"Never you mind,” I retorted mentally kicking myself for my slip.

"I know. Lets do it to each other,” Nadia suggested laying down on the bed and pulling me down to lay beside her but the other way around.

I felt Nadia lift my skirt and run the Vibrator along the lips of my pussy. I almost had an orgasm straight away as it felt so much better than when I did it. I lifted her skirt and did the same back to her and she jumped and moaned in pleasure as I did.

I used the end of the vibrator to push aside her knickers and started pushing the point in and out of her pussy and soon she was squirming around on the bed having her first orgasm.

Pulling aside her knickers I pushed more of the vibrator inside her until I had about four inches in her and she was moaning loudly and shuddering, forgetting to do stuff to me as she kept coming and coming.

We both heard the doorbell and looking up I was surprised to see Granddad standing just outside the bedroom door with a camera. He held his finger to his lips and turned and went to answer the door.

Nadia and me quickly pulled our clothes back into place and when Granddad called up that it was Nadia's Mum come to collect her we walked down the stairs together.

After watching Nadia go I walked back to the kitchen where Granddad was putting stuff away.

"It looked like you didn't get a chance to come?” he said. "Never mind we'll put that right shortly.”

"How long were you there?” I asked.

"Long enough to get some nice pictures of your mate having the time of her life,” he answered. "I think next time she is over we should show them to her and get her to join in our little games.”

"I don't think she would do that,” I replied not really sure if she would or wouldn't.

"I think once she sees the photo's and I threaten to send them to her Mum and Dad she might change her mind on that,” he said with a laugh that I didn't like. "But anyway we don't need her yet. We'll leave that till later.”

Taking my hand Granddad led me upstairs to my bedroom and picking up the vibrator I had used on Nadia he pushed me back on the bed and held it against my pussy. Soon he had me writhing about and moaning even louder than she had. I felt him pull my knickers off and soon the tip of the vibrator was inside me. I watched as he picked up the second vibrator and he started to rub this one on my clitty.

My body exploded in an orgasm and as I came down I almost passed out. Granddad walked back into my room with the bag from the sex shop and I realised I hadn't even known he had gone.

Putting it down on the bed he raised my hands up and used the cuffs to fasten them to the headboard of the bed. Spreading my legs wide apart he cuffed my ankles and fixed them to the bottom of the bed before opening the buttons on my school blouse and lifting my bra so that my breasts were exposed. Finally he flipped up my skirt to expose my pussy and picking up the vibrator he started rubbing me with it and pushing it in and out of my pussy.

Feeling my orgasm coming I moaned loudly and as I came Granddad bent and started kissing, licking and nibbling at my clitty. As he kept me coming his mouth went from sucking my breasts to nibbling my clitty and back again. I was so sensitive that everything he was doing made me jump but he kept me coming again and again as he pushed the vibrator further and further inside me.

While I was still a virgin, I had been riding horses and doing Gymnastics for some years so I felt no pain as he pushed the vibrator inside me, instead I felt the pleasure reach new highs and thrust my hips up to get even more inside me.

Granddad had been making me orgasm for some time when the pleasure seemed to change. Instead of pushing towards the vibrator my body started to pull away and instead of pleasure I began to feel so sensitive that every touch seemed to hurt.

"Please no more,” I begged Granddad but he just laughed and brought me to another orgasm. "No Granddad please stop,” I begged again. "It's hurting.”

Taking the vibrator out Granddad buried his face between my legs and I jumped as I felt his tongue enter me and lick my pussy. His hands were gripping my breasts tightly and I was moving my hips from side to side trying to get away from him.

Crying out in pain I had another orgasm and felt my pussy walls gripping his tongue.

"Please Granddad no more,” I begged.

Without replying he got up and stripped all of his clothes off before getting back on the bed. His cock was really big and hard and when he lay down on me it rested against my tummy.

"I wasn't going to do this yet,” he told me, "but I can't wait any longer.”

Lifting up slightly he put the end of his cock against the entrance to my pussy as pushed it so the tip went just inside.

"No Granddad, please don't do that,” I begged but he just kissed me hard and shoved with his hips to force himself deep inside me.

It felt like something tore and gave way and his cock stretched me open as it went in. I screamed but with his mouth covering mine it sounded muffled. He was soon thrusting in and out of me like he was trying to punish me for something and I cried as he hurt me.

His cock was now going completely into me and it was hurting me inside where it was hitting the end inside me. With every thrust he grunted liker a boxer does when he is hitting a punch-bag and I felt like that punch-bag must as he punched his cock into me again and again.

Despite everything I felt another orgasm coming and started moaning as it hit me. My pussy clamped down on Granddad's cock and I heard him moan and felt his cock start to jump inside me as his cum squirted out.

After holding still inside me for a little while he collapsed onto me and lay still. As he lay there squashing me I felt his cock begin to shrink until it slid out of my pussy and I felt something wet leaking between my legs.

Rolling over Granddad lay against me and started breathing deeply and I realised that he had fallen asleep. As I lay there I thought about what he had done. I had never thought about if I was going to wait before having sex or not but I guess I always thought it would be with a boy I loved. I never thought that I would be tied down on my bed and taken by my own Granddad.

But I had an orgasm as he had made love to me. That must mean that I had wanted it or at least enjoyed it. I remembered the way my pussy had gripped his cock and felt guilty that I could have enjoyed it.

As I lay there confused I felt my eyes getting heavy and felt myself dropping off to sleep still not sure about what had just happened.