All characters are/were over 18 at the times of portrayal.
*****
This heatwave feels unending; but of course it's only been a few days. It's too hot to do anything. Or wear clothes.
Of course the last part has never bothered us at home. We're naked now, lazing on the patio in the back garden. I rigged a large sheet out from the back of the house, like a canopy, to keep the sun off us. We're not overlooked in the garden, so we're wearing nothing.
My wife and I are on one of the two extra-wide reclining loungers. My daughter and her partner are lying on the other. We are listless, any movement brings sweat. The pool is refreshing but with the strong sun beating down on it, we can't go in it for long during the day.
I wonder if I should get an air-conditioning unit for the house, even just for one room; but Sod's Law means that the moment I do; a new ice age will begin outside . . .
There is someone moving though; however, she's not moving much. My eighteen year old granddaughter is laying on the bottom end of our lounger, casually sucking my cock. It's like she's nursing from it. Her eyes are closed and she's just gently using her mouth. She's been doing it for the last half hour; since her last swim.
My daughter reaches over and ruffles my granddaughter's short auburn hair. "Honey, leave your Papa alone. It's too hot."
"But Mom;" Tiffany whines, lifting her mouth off my cock, "I'm not really doing anything . . ."
"Leave her be, Olivia" I say gently. "She's not a bother."
My daughter smiles, "okay, Daddy" as her daughter goes back to sucking me off.
I cup my granddaughter's soft cheek with my palm. I love her so much. Though she's been raised as my granddaughter, Tiffany is my daughter too. Our lives have formed around incest.
My wife is my baby sister. Claire was an accident, but a welcome one; five years after I was born. She always doted on me and when I came back home after university, she had turned eighteen; she surrendered to her fantasies and gave herself to me. She had to beg me to take her; I was an experienced young man and she was a sweet innocent teen. I had to take her; I saw it would break her heart if I rejected her. Then in our physical intimacy, I fell for her too.
We kept our affair hidden from our parents in the few months I lived at home. When I embarked on my career after university and found my own place; they never suspected when I took her to live with me in the city.
Our parents died in a car accident a couple of months after Claire became pregnant with Olivia. We had been agonising how to reveal our lives, and their upcoming grandchild, to them and how to live more openly together. But once I closed their affairs; I realised that since we already lived together and shared the same name; we could pass ourselves off as a married couple easily. So we did.
When Olivia was old enough though, we told her everything; discarding some half-truths we'd long used with her to answer awkward family questions. Olivia had never been sexually inclined towards men; her teenage years had involved her bringing home a wide variety of young bisexual and lesbian girlfriends.
We, of course, accepted her adolescent choices; given our own perverted history. We hoped quietly that she would find a nice boy, eventually, who could give us grandchildren. Instead life took another path. Olivia never strayed from her lesbian inclinations all the way into adulthood, finding Amelie at university, who is her life-partner.
But both wanted children. Olivia asked me if I would conceive a child with Amelie. Claire agreed to the unusual arrangement. We tried for a few months but without success. We both got tested and it was found that Amelie couldn't have children. She, still fighting back tears, suggested I should impregnate Olivia instead.
I never really had a chance to choose; I remember Olivia jumping on to me like a little girl, saying "Let's have a baby, Daddy!" Claire agreed again, somewhat more eagerly since the idea of second-generation incest turned her on a lot.
Lo and behold, I bred my daughter. Actually three times; Tiffany is our youngest. Jack and Chloe are her elder siblings. They are going around Europe together currently, with friends. They formed a strong sibling bond and became lovers at a young age.
Tiffany though, always had eyes for me. She knows me as her grandfather, but she knows the truth too. Once she was old enough, we revealed her family history to her and she told us of her adolescent fantasies and made us promise to realise them. I took her virginity when she came of age. When she finishes university, I have to give her a child too. I'm looking forward to that.
You might be wondering about whether my wife/sister has been incestuous with her daughter or granddaughter. Well, yes; when Olivia was bringing her girlfriends home as a teenager, it made Claire question her own sexuality too, but she never acted on it until I started trying to impregnate Olivia.
Claire had spent a lot of time comforting our daughter-in-law after the news of her infertility; it led to Sapphic intimacy, and Olivia was soon joining them too for lesbian threesomes. They did have their own place but they moved in with us a little later.
It helped with raising Tiffany and her siblings too; since they effectively had one father whom they call 'Papa', and effectively three mothers. One child, then two and three, between four adults meant we were quite comfortable and well off, since we all worked and we moved house and found somewhere larger and suitably private for a family of seven.
You might be wondering about Amelie. Her family back in France are quite normal, but she loved the way our family was so inclusive and unrepressed. I glance over at her on the lounger. Her belly is showing now.
Amelie is a couple of years younger than Olivia. She was seduced by my daughter, who was in her final year at university, when Amelie was in her first. She was an innocent ingΓ©nue, fresh in our foreign land. She couldn't cope with the demands of university study and dropped out in that first year, but remained with my daughter as her lover. They both still look as gorgeous as they did then.
Age hasn't hurt their looks too much; it helps they are both sporty and we all make full use of the extensive home gym I put in the house we moved together to. She's thirty-eight, but could pass for ten years, or more, younger.