I was sent to live with my Grandmother

My father's mother 58 was recently widowed and being a really devout born-again Christian, she was not on my list of people to live with. But I'd lost my job and had been quite bit lately, getting into trouble recently. Nothing serious, so my father decided to send me to help his mother. Financially dependent on my father I'd little choice, 20 years had old failed to get into college or a scholarship. I lost my low paid job for being unreliable, failing to turn up. I was taken to my grandma's house in the next town, smaller than our town and mostly old people lived there, no local doctor, dentist or medical facility of any sort. It was like an old people community. But it was just a small town where everyone had grown old, and any younger people had left. My gran had three rules I'd to follow, first always tell her where I was going and when I would be back. Second keep my room clean and tidy, third do the chores before I went anywhere. I wasn't happy at being sent to live with my grandma but had no choice. Of course I tested to boundaries from the start, soon found the limits my gran would tolerate. Main thing she insisted on was returning by the stated time I would back, no excuses excepted. Upsetting her got my allowance from my father stopped straight away for a month. No money no going out, I didn't test the boundaries more than once as each infraction mean losing my allowance and the period increased by a week for each infraction. So, after getting my allowance stopped for a month, I didn't want to try for another 5 weeks for the next infraction. Staying at home with my gran was pretty boring at first, but one night I was showering and she came into the bathroom totally naked and joined me in the shower. It had only been 7 weeks since grandpa's funeral, grandma was missing sex and as I was there, I was chosen to satisfy her needs. Grandpa was 62 had a sudden heart attack and died before help could arrive. Anyway, I went along with what grandma wanted and surprised myself I really enjoyed the sex. Another benefit was grandma, became less strict with me as a result of her getting fucked by me. I was still virgin when joined me in shower and she taught me to please her. Lessons that I learnt unlike my lessons at school. I soon knew when was getting horny by her actions, I only slept in her bed on sex nights about twice a week on average. Rarely less, sometimes more she also got a neighbor to train me as a plumber. At first, I wasn't too happy but with my grandma pushing I came around to seeing it would give me financial independence. My grandma had a stroke last year she was 66 again died before help could arrived. But she had trained me well sexually and I'd had become fully qualified plumber. Not 27 almost 28 I've a girlfriend and buying my own home, my girlfriend is getting the benefit of my grandma's training, not that I told anyone of my grandma and mine sexual relationship.