I've had a decades-long "see you next year" sexual relationship with my older sister. We both married and live a thousand miles apart but we visit each other whenever we can and try to find some time alone. She visited for the first time since before the pandemic, four years ago and, well, it was extraordinary. I should say, right from the start, that I love my sister dearly as a sister. When we're not fucking, we're a normal brother and sister, even when we're alone; we both feel like brother and sister, nothing else such as "secret lover" or any of that. We have a sexual relationship based on just that - sex.
We know how to please each other because we literally taught each other how to have sex - what to want and how to give what the other wants - and we got really, really, really good at pleasing the other. What I do to my sister doesn't always please my wife but it drives my sister crazy every time. And vice versa. So when we can be alone together we do for each other the thing we do best with each other. We fuck.
I rented a hotel room - one of those cheesy day rental places with all the satin and oversized tubs; not our style but they ARE discrete - because one of the few rules is that we'll never disrespect each other's marital beds for our own purposes. We both understand the irony of that. My wife left for work and my sister and I were in the car a few minutes later. It took about 15 minutes to get there during which time we caught up on any new needs, kinks or preferences. She told me that she is now post-menopausal and would need some extra lube (which she had in her purse) and that anal was less good than it had been in the past; that we could skip that unless I really wanted it. I told her that I taken to wearing a butt plug all day most days, that I'd recently become multi-orgasmic during prostate play (especially while plugged) and that I'd learned that I loved the taste of my own cum and would not mind sharing. I got a little nod and a smile at that last one and she asked if I was plugged but I had to admit that I wasn't. Stupid me.
We got checked in and for the next seven hours concentrated on giving each other as much pleasure as possible as frequently a possible. On the bed, on the floor, in the shower... Face up, face down, bent over... Her turn, my turn... oy in, toy out... Do it all again... My first cum of the day was from felatio. I can't ever remember a time when she didn't greedily swallow every drop she could milk out of my urethra but, this time, she slid up and smiled and shared a big, open kiss to fed me my own load; it was a wonderful, tasty surprise. For the rest of the day she wouldn't let me cum inside her. She ended up feeding me two additional loads.
There were some occasional breaks (bathroom / water breaks, a quick lunch, etc) but we kept ourselves pretty busy; we don't get to be together very often and we don't waste time when we are. Towards about the six hour mark, I asked if it was "time to say goodbye" (more on that ritual later) and she surprised me by telling me she'd like to stay an extra day and go again, maybe watch me have a prostate orgasm. I rented the room for another day.
So that was Tuesday. My wife works only half a shift on Wednesday so my sister and I would only have about 4 hours alone, maybe 3 of those to play. Got to the hotel, undressed, she put in my plug (quite enthusiastically I might add) and I proceeded to have, solo, four of the most explosive super-o's I'd ever experienced; it was so utterly arousing to know my sister was watching and that she was seeing it all for the first time. It's been a long, long time since we could share anything new. I regained my composure and told her it was her turn and asked what she wanted.