Now that they were all married, finding the others engaged in martial congress was not shocking, even to Zae Zin Nim. When she was honest with herself, she could admit that it made her happy for them to be happy, and she even enjoyed the excitement of suddenly finding her husband and wife making love.
Still, when she entered the bedroom and saw Omilaena being penetrated by a giant monstrous tail, she froze in place like a virgin again.
"What... what is...?" The words fell from her lips instinctively as she tried to understand what she was seeing. Parts of it were familiar: Omilaena was bent over on the bed, raising her backside for Kai to grasp. Omi loved being taken from behind, and though Zae Zin Nim didn't fully understand that, she liked how her wife looked in the position.
But here and now, there was a thick serpent-like mass between them, stemming from Kai's tailbone to arch around him and then penetrate into Omilaena's back entrance. If the surface hadn't been the dark armor-like plate she was familiar with from Kai's monstrous transformations, she might have reacted with disgust, and even so, she was disoriented.
They had been mid-act when she entered, but now Kai froze in surprise, still inside their wife, hands locked on her hips. For her part, Omilaena sighed and folded her arms under her head to turn to look at her.
"Well, dear," Omilaena said, "when a man and a woman really want to fuck-"
"But what is that?" Zae Zin Nim padded closer, lured by their familiar presence even while she was off balance. "Is that Monstrous Tail? I... I didn't think..."
"I've been having Kai work on it." Omilaena slipped off of Kai and reached back to stroke the tail, entirely too sensuously. "I didn't think you'd be into it, but since you're here, don't you want a try?"
Zae Zin Nim only huffed in response, but now she found herself looking more closely. Where Kai's tail usually ended with a barb or blade of some kind, now it narrowed into a shaft. She was no virgin any longer, and obviously it was modeled on Kai's manhood - if there had been any doubt, she had the real thing not far away for comparison.
Now that she wasn't shocked, Zae Zin Nim found herself reevaluating. She still thought the shaft itself was absurd, but the tail itself... it reminded her of Kai, strong and muscular. Yet just like him, it was a little hesitant, even when she reached out to touch. The surface was smooth and warm, much more like his skin than the armor she knew, and actually felt good under her hands.
"You like it?" Omilaena asked from the bed.
"It is fine," Zae Zin Nim said, "but why would you need two?"
"I think I was demonstrating when you came in, but if that doesn't do anything for you, there are two of us. This gives us a lot of new options."
"No, I do not think so. Not for me." Zae Zin Nim avoided looking at the fake manhood at the end, even though she kept her hand on the tail, adjusting to it.
"You sure?" Omilaena suddenly went from relaxation to predatory slithering, behind her and teasing in an instant. "It wouldn't be any different from him using his fingers on you, and you like those."
"It would be different."
"Enough teasing." Kai interrupted by, surprisingly, growing another tail and reaching out to grab Omilaena, pulling her to him. The motion was abrupt, but strangely it made Zae Zin Nim more comfortable because it was so familiar. She knew those movements from Kai and they would never hurt her. If anything, the tail at her hand seemed to be curling around her arm in reassurance.
"It's up to you," Kai said to her, even as he trapped Omilaena's curves against him. "What do you want?"
"Can you try holding me?" Zae Zin Nim hesitantly moved between the tail and the rest of her husband's body, reaching out to touch both at once.
At first she was nervous, but then Kai's arm wrapped around her back at the same time his tail wrapped around her legs. That touch gave her the visceral understanding: this was still part of the husband she loved, and she had embraced his nature long ago. When he used both his hand and his tail to hold her close against him, she knew that everything would be alright and melted into her spouses.
.
..
.
Okay, so Zin Nim would take a little while longer to warm up. Omilaena had been looking forward to seeing that sinuous tail wrapped around her, ending up between her tits, but that was obviously a dream for the future. They could still have a lot of fun in the present.
She had a tail around her, pulling her in close to the other two, so Omilaena joined in the embrace, sharing kisses with both of them. There was actually a downside to Kai having new tails: he was already grabbing so many of the grabbable places. It wasn't bad to relax and let others take charge, but she had been enjoying getting railed from behind and wanted more.
If Zae Zin Nim was going to be precious about only taking the original cock, that was easy enough to work around. She was still clinging and kissing, as she usually did to warm up. As soon as she was ready, Omilaena helped her ease down onto Kai's shaft, grinding in the familiar position except that now a tail was helping hold her in place.
Meanwhile, Omilaena grabbed the tail at her waist and flopped back onto the bed just in front of them. She gripped the end and pulled it between her legs, as if she was going to use it as a dildo. But oh, when Kai thrust the tail into her, it was so much better, because the movement was under his control. All she had to do was lie back and get fucked, though she also rubbed her clit as she enjoyed the sight in front of her.
And it was quite a sight: Kai was standing with Zae Zin Nim impaled on his cock, easily moving her with both hands and monstrous tail. She looked amazing against his chest, legs spread wide and the sides of her breasts visible even from behind.
But over the top of her head, Kai could easily look down and see Omilaena, lying back and taking each thrust of his tail. She knew it was doing something for him, smirked to acknowledge it, and then began to undulate her entire body. It was only partially a performance, just leaning into the pleasure that was coursing through her as she reveled in it.
For a time she just lay back on the bed, taking the thrusts as she watched the other two fucking one another. That alone would have been plenty... and then another tail wrapped around her leg and pulled her up.
.
..
.
At first Kai had been preoccupied, just making sure that everything went well between them. Zae Zin Nim was still nervous, after all, and it took a while for her pussy to begin accepting his thrusts comfortably. Plus, he had to admit he was distracted by Omilaena having exactly the thought he did, about his tail being comparable to his fingers.
It did feel similar: he often had his cock inside one of his wives while he stroked his fingers into the other. If they weren't all over each other, it was one of the most obvious positions for them to take, making sure to spread the pleasure around. This wasn't as easy, but it did start to feel natural, as he adjusted to use of his tail pumping into Omilaena.
She was spreading herself for him, clearly intending to give him a show, but he couldn't hold himself back for long. He could feel his tail as it plunged deep inside Omilaena and somehow it didn't feel right for her to be lying in front of him.
So he grew one more tail and grabbed her, pulling her against them. For a while they were all jumbled together, even more limbs than normal, and Zae Zin Nim switched to kissing Omilaena instead. But as he retracted his tails, he managed to get them in the position he wanted.
Zae Zin Nim seemed to understand on some level, keeping her hips firmly on his cock but shifting her torso to one side. Omilaena pressed against the other side of his chest, her breasts pressing against him, her other curves rubbing against Zae Zin Nim. Kai wrapped his arms around them both, holding them close.
Meanwhile, he arced his tail around them and then pushed the shaft into Omilaena again. His hips were still moving automatically, pumping into Zae Zin Nim, so it was easy to set up a rhythm pushing his tail into Omilaena. Soon he had both woman clinging to his chest and moaning in pleasure.
They had been together many times, but never like this. Kai stopped thinking about his tail as a monstrous extension at all, it was just part of him and he was deep inside both his wives. This was something he hadn't known he'd wanted until that moment, and he reveled in it.
So he fucked them hard and fast until both women cried out in pleasure, then he finally took his own. Kai's knees almost buckled and he dropped onto the bed, flattening their curves underneath him. Other than a muffled sound of surprise, they didn't object, they just relaxed and cuddled against him.
His awareness of his tails returned, protruding strangely from his lower back. After they had brought them here together like this, they felt like the most natural thing in the world.