Bill was very happily married to Angela, but he was hiding a secret that was nearly tearing him apart.
The problem he had was Gemma, Angela's daughter from her first marriage. Bill and Gemma had gotten on well since he first met her mother.
Recently though she split from her long-term partner and moved back home while she sorted herself out somewhere else to live.
Inevitably, there was an age gap between them although Bill was a few years younger than Angela, the difference of eighteen years was still significant, but not a big problem.
One Saturday they were at home while Angela was out for the day. Bill treated them to fish and chips for lunch and while they were eating they got onto the subject of why Gemma had split from her partner Tom.
She explained that it was a combination of the lack of bedroom action and, as silly as it seemed, she was a bit disturbed by the closeness between Tom and his sister Sasha.
"Do you think they were up to anything?"
"I don't honestly know, I know siblings can be very close, but... Oh, I don't know."
"I suppose you must have had your reasons."
"Enough about me, how are you and mum doing, I hope I'm not cramping your style while I'm here?"
"I still love her and marrying her was the right decision..."
"I can sense a but come."
"It's nothing to worry about."
"But?"
"She is older than me, so sex is nowhere near as important to her, as it is to me."
He continued, "I do love her more than I can say, I just wish we could get physical more often."
Bill seemed rather relieved that he had gotten that off his chest, while Gemma completely understood his awkward situation and even felt quite honoured that he felt able to share it with her.
She smiled at him. "Don't worry, I know exactly how you feel, it was the same with Tom and me, so I'm not going to blame you for it."
They gazed at each other, the change in the atmosphere was palpable like they both knew what was going to happen next and both of them were powerless to stop it.
It was Gemma who instigated it by climbing over the table, pushing the plates and the knives and forks out of the way.
Her lips locked onto his and their tongues immediately started exploring their mouths. Bill could feel his cock getting harder and harder, while Gemma moaned as they kissed.
She unfastened his trousers and put her hand down his boxer shorts, grabbing his penis and feeling his pre-cum.
She got down on her knees and pulled his boxers down, as soon as his cock sprung up in front of her, she took it deep into her mouth, sucking it as hard as she could.
After a while, he told her, "Oh God, I'm going to cum, I can't stop it."
She mumbled at him to let it shoot into her mouth, getting more and more excited as his shaft kept twitching in her mouth before the first rope of his seed exploded into her mouth, far enough for her to swallow it.
She stood up, her face was flushed red. She dropped her panties from under her skirt, he could see they were wet and the expression on her face told him that she wasn't done with him yet.
She stepped out of her underwear, making him more excited, knowing that the path to her hot, wet pussy was now wide open for him.
She straddled over his still-hard cock and the chair, carefully lowering herself down, grabbing hold of his dick, and guiding it to her soaking wet hole.
They both moaned in ecstasy as her vagina took the full length of his cock in her and she started bouncing up and down on him.
They were both panting as they increased their speed and intensity. His cock got bigger and harder inside her, while her vaginal walls closed in exquisitely around it.