She'll do it

Xallia worms beneath Glenda and looks deep into your eyes. "Why not? I never wanted to conquer, only to explore."

"Then promise you'll take the vows as soon as possible."

"Are you sure Sabine? There will be -ah- difficulties."

Considering that daemons are well known for twisting words and promises you put a finger to her lips and reply, "Never mind that."

Xallia moans and says, "I promise to swear the oaths of the burning rose as soon as I am able. Now please Sabine, Anya, release me."

There's no way she can get out of that. You nod to Anya and roll off the succubus' arms. Xallia reaches up and caresses Glenda's shoulders before pulling her down for a kiss. Her hands move to Glenda's hips and pull them down until Xallia is completely sheathed within Glenda's moist depths.

"Sorry Glenda, but you're the one who will suffer for Sabine's choice of words." Xallia's fingers dig in and she holds Glenda still. Xallia's eyes squeeze shut and she begins intoning syllables of some strange tongue. At first there's no change, but then you start to see the effects. Xallia's face starts to shift and become more angular, her jaw a bit squarer. Glenda and Anya, who were not prepared for this by a vision, look amazed.

The changes spread from her head down along her body. Her shoulders grow more muscular, her breasts flatten until they're smooth and manly. Her belly, what you can see of it beneath Glenda's body, develops a few extra layers of muscle - a solid six pack. Xallia has stopped her strange chant and smiles at Glenda. "Now it comes," she says in a slightly deeper voice.

Glenda starts to squirm, but Xallia's arms hold her hips in place. You remember the vision and imaging Xallia's member swelling into that larger, fatter cock inside Glenda's recently virgin ass. No wonder the elven maiden is flailing like she sat on a fire ant mound.

"Too much," she whimpers.

"You can do it," replies Xallia. "Have faith, dear sister. For this will not be the last time I **** my cock inside that marvelous ass of yours!"

"Please, please!"

"Take it!" replies the succubus - now incubus - beneath Glenda. Your curiosity forces you to change position so you can see between Xallia's legs. Sure enough her slit has already sealed up and a pair of testes have descended. They start to swell and soon surpass the size you would expect for a normal man. You have no personal experience with men but you've seen the balls of dogs and other animals. By the time they stop growing the only comparison you can make is to the balls of bulls or stallions.

Anya is even more curious and touches them, cupping Xallia's newly minted sperm factories in her hands. "Wow, they're so hot," she says, awe in her voice.

"Oh yes, keep it up. Make sure I have a nice load to blow inside your friend"

Anya shocks you and does more. She moves closer and licks Xallia's hairless balls as well as fondling the heavy sack.

"Fuck yes, you're such a dirty girl!" Xallia thrusts upward and you can tell Glenda is seeing stars. Afraid she'll hurt herself you stand and hold your fellow sister, supporting her torso as Xallia becomes more and more excited and forceful. It's a long, hard shag, hardly any finesse or gentleness. Xallia just plunges her enormous member in and out of Glenda. Anya gasps the first time she sees nearly the whole length, but Xallia never lets it slip free, always plunging back inside until her hips meet Glenda's buttocks.

At first Glenda winces and clutches against you with each thrust, but after what feels like minutes of Xallia's harsh treatment she starts to moan into your ear. Then she bites your neck and begins to rock back against Xallia's thrusts. Elves are supposed to be more delicate than humans but here's Glenda, happily riding the largest cock you've ever seen. Once the elf is into it Xallia releases her hips and pulls her down for a kiss.

"You'll get this again and again. I promise you'll beg for my cock."

"Yes, make me yours!" shouts Glenda for all the forest to hear.

Xallia grunts, Anya says, "Oh my" and you watch as Glenda's stomach distends slightly.

Glenda puts a hand to her belly. "Oh my Goddess! I can feel it. There's sooo much cum." Then, with a slightly manic giggle she collapsed atop the incubus.

"Yes," pants Xallia as she falls back against the earth, exhausted. "And there will be so much more." She looks over at you and gives a pained smile. "I tried to warn you. As incubi we need to cum often. We need many women to satisfy us. Most of us remain hermaphrodites not just because we enjoy the best of both sexes, but also because in that form our lusts are easier to control."

Anya gives Xallia a little kiss on the cheek and says, "That's okay Xallia. Just change back and say the oaths. I can't speak for Sabine or Glenda, but I like being in the hands of a - what did you call it? - hermaphrodite. Gentle and soft, but pushy and hard all at once."

"Nice to hear," replies Xallia, stroking Anya's cheek, "Oh, and I tend to go by Xall as an incubus. But you see I need energy to change forms. Quite a bit actually - and there's no one else around to provide it. So the three of you are going to be sore. I promised Sabine I'd swear the Goddess' oaths as quickly as possible, so I'm going to have to fuck all your asses, all your mouths, all as fast as I can. I just hope I don't wreck you permanently - that would be an awful shame."

Anya lets out a little gasp and looks pleadingly at you. You're not sure how to deal with this, but if the three of you end up drained and bowlegged it might give the other daemons time to catch up to you.