Two nights later there was a repeat performance; I was returning home after a four to midnight shift and when I got to my bed she was already kneeling on it naked as a jaybird; her pussy and anus both shiny with my lubricant.
"You promised me you would Bill," she said her large breasts swinging beneath her, "Come on, or do I have to make you angry first... bum boy..."
Now don't ask me why, I don't know. If it had been another 52 year old lady looking as good as my sister I probably would have sat down with her, covered her with the duvet, made two cups of tea and laid on the bed and talked about our feelings.
But their it was, an arse so well lubed I could almost feel myself in it. Fuck, I was thinking of having a wank anyway -- this was just extreme wanking.
I knelt on the bed behind her. "Oh alright," I said, "Seeing as I was going to masturbate anyway, I might as well use you to do it," and she wriggled her bottom at me and slid her knees closer together, "spread your knees out," I said, "it'll make your bottom looser and will it'll be easier for you."
"Oh no!" she exclaimed graciously, "You have me how it's best for you Bill," she said, "you keep pushing in until you're happy with the result in whichever hole you want."
My cock was rock hard again; I had been thinking that I would struggle to get it up to fuck this woman, my sister but nothing of the sort.
I got my prick in my hand and pushed in. She was relaxed and my second entrance to my sisters anus was easy and pleasurable.
"Will I be allowed to play with my clit this time Bill," she said.
"Well if I'm wanking only fair you do too." Her shoulder slipped just fractionally as she slid her arm under her to play. I could hear the squishy noise through the squelch of lubricant as I started to power my cock in and out of her.
After a few minutes of our fucking, I could tell that she was on her way, so I increased the speed of my fucking so she might come. She did, falling forward slightly in her passion and totally putting me off my stroke.
With my hesitation she fell flat on the bed, and I waet with her, my cock still trapped in her arse. I carried on fucking her, getting used to the feel of my body in full contact with hers -- not something that I was used to when I was in control. I'd fucked and been fucked face to face and while it was different, the mechanics of it were a bit too much of a pain and I eventually ended up hands and knees again.
But this was nicely different, the softness of my sister below me, the body warmth that I rarely felt when making love; different.
So I carried on fucking, resting on my elbows and powering hard into Sandra's body, which had nowhere to go to.
"Oh shit, Bill," she cried, "Oh Darling, that's good, fuck..." she gasped, "I'm... oh shit... please Bill, Darling keep..."
I cried out in orgasm the same time that she did and I pumped my come into her arse, resting my weight on her. Her cheek touched mine, and my eldest sister and I kissed for the first time in years, but never did we use tongues before.
"Wow Bill, that was wonderful," she said, "best wank I've ever had - Poof."
I rolled to one side, and slapped her arse. "I might use your mouth next time, seeing as it's so big-- Bitch."
"Promises promises," she said rolling to one side and heading for the bathroom.
I realised that I'd not so much as shared a coffee with Ralph in the last month, and felt slightly guilty. Mind you, he hadn't phoned me either, so I texted him, just in case he was 'busy'.
We met the following lunchtime at Coffee Republic and he asked me how life was with my Bitchy sister.
"Weeeeeell," I said, "She's still a pain in the arse but she's mellowed a bit."
"Are you fucking her yet?" he said.
"Wh... what?" I tried to sound like the idea was totally abhorrent to me.
"Are you fucking her yet?" he said. "When I came round that night, she gave me 'the look'." He sipped his expresso, "you know, the lioness defending the turf look; but it wasn't the 'get away from my brother/son/nephew you pervert' look -- it was more of a 'he's mine' and it wasn't at all parental."
"Yes," I said, sipping my hazelnut latte, "you're are, of course, right in your assumptions. She says it's the HRT that's making want to fuck everything bar the coffee table."
"Has been known Bill," he grinned, "so have you?"
"Walk with me and I'll tell you a story," I said and we finished our coffees and walked through the summer sunshine.
By the time I'd finished telling my tale we were almost back at the car.
"Christ," he said with a huge grin on his face, "good job you smacked her arse when you did, I think the mad Bitch may have thrown you down and fucked you if you hadn't." He looked around, "and to be honest I don't blame her." His look let me know that he wanted me, and I wanted him.
"I'll come round," I said.
"I'm night duty surgeon," he said disappointed, "off tomorrow though."
"I'm on rest day, I'll..." a thought struck me, "no; change of plan, you come round to my place, there's something I'd think you should try - at least once."
He grinned, "Should I bring anything?"
"Wine, a sense of humour, thick skin, and handcuffs, a leather whip, face mask and spanking paddle; any sex toy you've ever fancied trying because I reckon with this is going to be one night you'd get away with it." I grinned at him, "and not with me."
We parted with a smile and he left to go home for a shower, a few hours sleep and a night of well-paid sleeping baring the two night rounds he had to do, unless one of his customers woke up and needed operating on in the middle of the night. He would get my weekly wage for that medical sleepover; I realised I should have worked harder in school.
That evening I was lying on my recliner armchair watching one of the American police dramas I like so much when there was a clatter at my letter box. I went out to see what it was. I never publicised the fact that I was gay to my neighbours as several of my friends had been victims of homophobic abuse and it was with some trepidation that I walked to the hall.
On the mat as a large padded envelope and I approached with caution. When I saw Ralph's appallingly spidery doctors handwriting I smiled and picked it up. In doing so I realised what it was just from the shape, and it was a big one.
Sandra woke from a wine induced doze in the sofa. "What's that, this time of night?" she grumbled.
"It's a present from one of my friends," I said.
"Really?" she said, "you bum boys do deliveries at ten o'clock at night do you?"
"Only when it's important... Bitch."
"Eeeeeeeeeeeeewwwwwww, get the bum boy nurse getting all tough just because he's fucked my arse a few times and given me a good spanking!"
"Actually Sandra dear, it's a present for you from one of my bum boy mates."
"Really," she said rolling onto her front, "what is it pray? Make up remover? Curtain material? Fashion advice perhaps?"
I stood, again I would need to be quick.