My life may seem to some as the perfect dream, and some may consider it a nightmare. As the definition of a unicorn above suggests, regularly seeking a one-night stand with a couple is exciting, good fodder for a Lush story, and with a low risk to both the individual and the couple. Not so rare perhaps, and in my view, the single one-nighter bisexual girl does not really qualify as a unicorn.

Is it possible then, for such a girl to form a completely closed and permanent relationship with a couple, living together and as though all three were married to each other? Well, yes, perhaps as rare as a unicorn or hen’s teeth, but believe me, it happens, it can work, and my life is a complete joy as a result.

I am that girl.

I live with Jacky and Joe, and our relationship together is closed; we do not invite others in, nor do we step outside of it. We were friends a long time ago, and Jacky lost her virginity to Joe, and mine to another man, long-since forgotten. They were married, but our friendship was strong enough for them to invite me to live with them.

As we are all medics, this worked well as we were all on different shift patterns so didn’t end up treading on each other’s toes.

For a long time, our lives went along side-by-side. They were madly in love with each other and I was on my own. I could only get my sexual release through masturbation, it being a very convenient process and always with the planned outcome of satisfaction.

My working hours meant that I didn’t have much time to pursue a relationship or even find a suitable mate.

We did discuss sex, and in time, Joe and Jacky started to help me understand my body better. Without embarrassment one night, he showed me how Jacky responded to his ministrations.

“Come here and watch,” he said, and in fascination, I took in the skills he showed and revelled in the responses he got from Jacky.

“if I touch her here,“ he said, stroking the top of her thigh, “I get nothing, but move a few inches to her inner thigh …”

Immediately Jacky moaned, and as if he has said, “open sesame,” her legs parted.

I had learnt a lot about what I could do for myself, and revelled in doing so, particularly at work, but also when I lay in bed and could just hear the sounds of their lovemaking. Joe’s instructions were opening up a whole new realm of delights for me, that of giving pleasure to others, and the promise of those delights being returned.

Joe continued his lesson, showing me exactly what turned Jacky on, her nipples, and to my surprise, when he turned her over, the beautiful sighs of pleasure when he touched, stroked and kissed her bottom, finishing with a gentle rimming using his fingers.

I could see the moisture seeping from Jacky’s pussy and was transfixed by both the sight, but also the aroma of sex in the room, one that I was all too familiar with in my bedroom.

“Your turn,” he said, and I couldn’t believe what I was hearing. Was he about to stimulate me?

My heart pounding, I was just able to blurt out, “but…”

“Look, as a doctor you know that reading textbooks is all very well, but without the practice, you’ll never know what to do.” Clearly, he wanted me to practice on Jacky. “Go on!”

I had always secretly been attracted to her, tall, slim, blonde and very sexy, so I started to work through the things that Joe had shown me, to wonderful effect.

Jacky had been primed by Joe, so I’m not sure just how good I was that day, but she was like putty in my hands, moaning and writhing under my fingers.

“You should feel what I’m feeling,” Jacky announced, "so you know what it’s like." We managed to get into a position where I would do something for her, and she would reciprocate on me.

This was so different from masturbation. Pandora’s box had been opened, and much as I would continue to adore my time alone, I could never look back.

As she touched me in all the right places, I could feel sensations never felt before, and finally, with two fingers in my pussy and a blur from the other hand on my clit, I had my first major orgasm.

“Oh, oh, oh,” I cried, “where did that come from. That was amazing.” I turned to look at Joe to find him in the last throes of masturbation when his cum flew out and landed on Jacky and me, splattering our boobs with his milky saltiness.

This was the start; and what a start.

We began to read erotica together, and as you can imagine, one thing led to another bringing the three of us together as lovers. Jacky invited me into their bed and life as if I was married to both.

On a practical note, we all sleep together whenever we can but our shift working means that it’s usually any two of us at one time. We have sex in as many combinations as you can imagine, and no one has to ask permission if one is absent.

I think you are all reading this and thinking, ‘well, now I know what a unicorn is and how you became one, but cut to the chase, what do you get up to?’  To make your reading of this worthwhile, here’s an example of how fulfilling our sex lives can be, all of which happened this week.

When I was at work, having a short break and the opportunity to take myself off for some alone-time, I went onto Lush on my phone and found another blazing story by literot, called ‘Never Give Up.’

Having read the story and had my delicious release, I just couldn't get the story out of my mind.  I never wear panties or a bra at work in case I get covered in body fluids from the patients, but I never expected those fluids could be mine!

I had to change my scrubs more than once because of how much flow I had soaking my crotch.  I was just grateful that they were navy blue and not the light green ones!

When I got home, I stripped at the front door and ran to my shower, jumping in straight away without even saying a word to Jacky who was already at home. Thinking back to the Lush story, I wallowed under the spray of the shower, letting my mind wander back to that story and started to finger myself.

Bliss.

Jacky was worried about me as I hadn’t greeted her. Coming into the bathroom, she just had time to say, “you ok?” when she saw I had my fingers deep inside myself and was just having a powerful orgasm. “Sorry,” she said and was about to leave.

“No, you don’t,” I snapped, “that was only the beginning. In you come,” and I dragged her into the shower, clothes and all, although she was just wearing a T-shirt and lacey panties, which made me even hornier than I thought possible.

“Get these off, “I moaned as I stripped her quickly, “now, where’s that pussy of yours,” and as I moved my hand down between her legs, I could feel her doing the same to me, fingering, kissing and rubbing each other to orgasm after orgasm.

“Let’s go to bed,” Jacky gasped, dragging me out of the shower and into my bedroom without even drying off. Making me kneel on the bed with my ass in the air, Jacky started to rim me to another orgasm before we both collapsed, holding each other close in a glorious embrace.

“Now what was that all about, horny girl,” Jacky prompted, “you were like an Independence Day firecracker.”

I felt wonderful.  Exhausted, and lying soaking wet from the shower and our sex, I explained.

“I read this story on Lush at work today, and my pussy wouldn’t let it go. Despite cumming twice, I couldn’t forget the story and was leaking most of the day, changing my scrubs and trying to focus on work.”

“Sounds good,” she said, “why don’t we wait till Joe gets home and read him the story and watch him masturbate and then we can both fuck him hard.”

The day got better and better.

We read the story and Joe was rather blatantly enjoying it too, his erect cock signalling his pleasure, and his hand acknowledging its presence with gentle strokes as he listened to the erotica.

Once the story was over, Jacky pushed him back on the bed and taking his cock in her hand, directed it into her sopping pussy before riding him cowgirl style while I kissed them both.

Despite their focus on each other, they never forgot me, and each had a hand tweaking my nipples or rubbing my clit. Watching them fuck was, as always, a real turn-on and so I was able to time my orgasm with theirs. Jacky fell onto her back and pulled my face to her pussy so I could lick her clean of Joe’s cum. I will never tire of this.

“Ass in the air,” Joe commanded, and while I continued to slurp at Jacky’s leaking pussy, he got behind me and fucked me hard and I wished this was being filmed so I could relive it later. Before long, he came for the second time, filling my pussy full of his sperm.

Jacky knelt beside me, spreading my buttocks and started to rim me again, alternating with sucking Joe's cock.  Jacky was licking his cum from me when Joe began to rub the end of his cock around my anus.

“It’s time,” Jacky said without emotion, “you have put this off for too long.

“I’m not sure,” I replied nervously, ”but it felt so good that I just pushed back against it.  Then Jacky started to push her fingers in and out while rubbing his cock up and down my perineum.  Eventually, she managed to get three of her slim fingers inside me, and I didn't mind the pain at all.

This was my moment. I have always been too scared to have anal sex, even though Jacky and Joe do it a lot, and I love watching them.

With Jacky’s help, Joe worked his cock in, bit by bit, and, starting slowly, it felt amazing. As he fucked my ass, Jacky lay beneath me using her tongue on my clit and all around my vulva.

Oh my God, I have never orgasmed so hard or as long before in my life.  Now I know why Jacky loves anal sex, and I have a commitment from them that I would be getting it that way a lot from now on.

So, a unicorn girl living long-term in a closed relationship with a couple does happen and goodness me it can be so good. And even after all this time as a trio, new sexual experiences can happen, and in this case, it was all down to a very sexy story on Lush, even losing my anal cherry as a result...