I Took My Gran Up On Her Offer

My gran is in her 50's and looks fucking hot my gran was young when she had my mum and same with my mum when she had me.i was 13 when I noticed how my gran was being different with me like stair then smile,hugs was longer and would tell her friends that I'm her cute young man.it was when i was 15 my gran first offered to give me a helping hand when i was about to take a shower.i would laugh then couldn't wait to wank off to the thought.even though when i turned 17 i was having sex for almost a year with a girl i still enjoyed my wanks over my gran.the day came when i took her up on her offer and she didn't hesitate for a second.it was around 11 o'clock in the morning and we was texting each other when i told her i should take a shower and her reply was shame i could've given you a hand let me no if you need some help.my reply was ok give me 10 minutes you better be ready and was soon heading to her house.my gran only believed i meant it when i turned up on her door.opening the door she looked beautiful as ever like a secretary heels knee length skirt white shirt that was trying to contain her huge tits.i only shut the door and her words was let's see your cock,she didn't need to ask twice in a flash i was naked.still with a smile on her face she said you've definitely grown up and took hold and was talking to me as she started jerking my dick.saying you like your gran playing with your cock you horny boy show me how much you enjoy it and i couldn't hold it back.i came she's saying that's it baby let it all out.when i opened my eyes her skirt was sprayed with cum and she was still jerking my dick now slower with her cum covered hand.my gran went off to clean her hand but before she did that she said i hope you're not finished yet because my hungry pussy needs filling .I heard the tap running i thought to myself right she's getting it so i rushed up behind her ripped her shirt open she turned round slipped down her cum stained skirt and i asked her to keep her heels on.i picked her up and got straight to it fucking her up against her sink.she was loud shouting out that's it fuck me harder.each time i did she would ask for me to do it harder .now 4 times a week me have a good session