Petra can't wait once she wakes up.

You are arisen from your slumber by the eager, little pup pulling at your shoulder. Your surprised to find that your still attached to Molly the whole time you had been a sleep. Once Petra manages to free your dick from her mother, she kneels between the two of you cleaning you up and making sure your dick is in working order she licks up and down it. You figure at least she is waking you up in a pleasant manner more or less, Petra really gets to work worshiping your dick like she has done before.

She pushes and slides her crotch up against it and hugs your cock and licks it and sucks on it much like she had in past days. You consider stopping the pup from doing it like that but it seems from the look on her face that she takes great joy in doing this. She rubs her sopping wet cunt lips against the base of your dick as she rubs her clit against it. She humps at it harder and harder til she floods the base of your dick with her juices.

Molly wakes up from the movement on the bed and smiles at her happy looking pup. She turns to look into your face and you seem to have a small grin on it even if you are trying to hide it. Mean while Petra is still going to work getting herself and herself off or at least trying to get you off without penetrating herself. After a little while it becomes to much for Petra in her lust for cock to keep rubbing against it like this.

Petra rolls over and looks at you, She smiles as she sees you smile at her and says " Can't we please do it like you and mom did last night?"

You look at the little pup innocently and ask " Do you mean, like dogs or wolves? Well I bite your neck? Or do you mean in the ass?"

Petra ponders this for a moment and considers things and then says " The first one, it seem to really drive her wild."

You look at the pup a second and say " Your neck does not have the protective fur that hers does, I would be a little worried I might hurt you."

Petra looks pained for a second and considers things and then says " We could see if whatever gives you the ability to change Abby's form or your own has any affect on mine maybe? And you could some how maybe get it so my fur thickens maybe?"

You shake your head and say " We have no idea how that might affect you, we should look into seeing if they got pills you can take to thicken your fur if you like."

Petra shakes her head and says " That takes to long, come on Alex."

You consider it for a moment, and then get behind the pup you slip your dick slowly into her very tight cunt. You put your arms on both sides of her head, simply because that is how much bigger you are compared to her. And you slowly push in, you place your muzzle next to Petra's head as Molly watches on. You whisper something in her ear and she nods her head.

You turn to Molly and shake your head, as if to say you don't agree with what the pup wants. But Molly simply nods and says " Go a head Alex give it ago, chances are whatever happens you can change it back if you try hard. Or it might just be a short term change, thou these is honestly no telling."

You shake your head then kiss the back of the pups head as you keep pumping in and out of her as she wanted, You bite down lightly on her neck and let out a growlish sounding howl. Nothing happens, your relieved to see nothing happen. You watch the pup closely and nothing happens. You roll your eyes thinking about how messed up it would be if something had happen.

You hear Petra moan out, " You did not even say it like you mean it, Alex that is not fair now is it? You managed to get Abby to transform just form a howl, and that howl got me really hot. We have no idea what you can do if you really mean it."

You look at Molly as you keep pumping and say " Things could go wrong and you some how end up human, how would you feel about that?" Petra thinks about it a moment and says " good chances are if that happen I would end up looking like Abby or Yourself as a human so chances are I can return to my own form right?"

You shake your head and say " We got no idea, and now is not the time to be trying it." To make that point clear you start pumping into her a bit harder and bite down on her neck a little harder, at least hard enough to leave small teeth marks on it.

Petra lets out a little moan and says " It would be interesting to find out don't you think?"

You let out a howl in frustration as you deal with the pup under you and then say " Did you not just say yesterday that you had no interest in turning into a human to Abby?"

Petra nods her head and then says " But if it allows me to be more like you or mother is that not worth it?" I really do wish to have longer fur, and so on."

You shake your head as you pump into her, and then suggest " Since your only a year and a few months old we have no idea if it would not just turn you into a baby. Now that would be a real fine mess, don't you think."

This finally gets Molly's attention and she says " Don't worry about it Alex, Max told me a little bit last night. He said, as best as he can tell. You might be able to pass on the magic in you. For some it will be stronger then for others, he said in most cases it depends on how much they care for you and so on. And he said it's a strange thing, he said the magic works better or stronger on people who had already been affected by it."

You shake your head as your still pumping into Petra and let out a growl into her neck, Petra gasps as she lets out a howl. Moments later her body gets a bit bigger, and the fur all over her vanishes as does her tail and ears. You look down to find your having sex with what looks to be very much human. She is just moaning and grunting under you, and she does in fact at least from where you are look to be about 18. Thou its hard because her face is turned away from her, you remove your muzzle from her neck.

Molly on the other hand is looking own astounded and says " This does mostly complicate things, it makes or will make us question the moral right of allowing people to buy/ adopt Animorphs for the most part."

You shake your head and say " As best as I can tell, This changes nothing. For the most part every pet is given the right to pick someone of there own liking still right? So it does not change the general idea of interest and or there own rights to decided to be adopted."

Molly nods as she watches you pump in and out of what now looks like a every hot teen age girl, you kinda wonder if the other pup born the same time as her is her twin. But at the same time you realize that is a little tasteless, so you keep pumping in and out of Petra, til you feel her body tense up and she starts to cum. She clearly is not producing as much fluid in this form as she had before. Also you are having a harder time staying on top of her because she is not much smaller then you now. You bottom out in her quivering wet cunt and cum, you notice that her body now has little trouble taking your cock or the knot. So you let out a howl and she shifts into her old form just a bit of light fur and a thick furry looking scruff around her neck. It all looks very naturally thou as if she has always had it.

Petra looks down at herself for the first time, she had not noticed she turned into a human. But she realizes she seems to be a bit bigger. She also notices a bit thicker fur, thou it's still ever thin and light. And she reaches around her neck to find she has the protective fur around her neck. She starts to rub and touch her neck, you figure if she is doing it you should to. So you reach down and start to rub your muzzle against her neck, you then lightly bite down at first and then apply more pressure and more pressure til you hear Petra letting out moans and gasps of air. You try to pull your dick out of Petra but it becomes clear that the wolf form seems to have something as part of the anatomy that is is meant to latch on to the knot and hold you inside her. It might explain why its so hard for you or the others to remove the knot. When comparing it to how it was with Petra's human form at least.

Petra starts to shake and shiver kinda, and then it is clear she is cumming once again and this time well only being impaled by a none moving hard wolf cock and the bite you are applying to her neck. The pup lets out a howl, of happiness. Or at least its the best you can figure it is. Shortly there after she slumps over and starts to let out light sounding moans and her body shakes and moves a bit. As she drifts off to sleep. Soon after your knot comes on done, and Molly comes over to clean up the leaking mess and you.

Molly then says " I wonder, if very Animorph is capable of that or very human. It really makes you wonder.'

You look at Molly and simply say " I am not having sex with a man so that he can turn into that. It's not happening"

Molly smirks and says " That is not what I meant Alex, I mean my little Petra, is now a little woman. Or at least she can be if she wants to be. I wonder honestly if it only works on Wolves and canine because of how it affects you Alex and how aggressive your transformation. Along with pills and the natural affects of who you are and everything works. Thou Max had not explained much of anything in regards of how it will affect the people around you, he simply said that the people around you who care for you are more likely. To have mounting affects, and he insisted that it was all safe he just did not clear up what kinds of affects they are."

You nod and say " This might mean you could shift back to human form if you really wanted too, thou I have to warn you nothing you own can be worn. You will mostly be as big and beautiful as you are now."

Molly looks at you funny and says " No that is ok, you know I prefer this form. You will see what I look like normally, and no I am not ugly I at least look as nice as Kamrin or Abby. Thou honestly if how Petra looked, man none of us look anything like her. She is smoking hot."

You shrug and say " I did not get a good luck at anything but her ass, I am also wondering if we should tell her that happen. She seemed to wrapped up in the feeling of my bite to even notice it. Also she triggered it after I growled into her neck as I did what she asked for."

Molly nods and says " Yeah it's strange, I have heard a lot of howls and the one she let out did sound a lot like one of the others you let out but not quite. Something was different about it."

You nod and say " I had let out a howl that had transformed Abby into wolf form yesterday, it maybe be that Petra's soul or mind or body or something had really resonated with that. She said she had gotten all hot and bothered, so maybe it was unlocking or the key to making it so she could turn human. So her howl might every well have been like revise engineering the howl that turned Abby into a wolf girl. Either way we need to make an appointment for both Abby and Petra to get clothing. I want you to go meet the pup that Max picked for Abby to look after and I will look after Petra today. I know I am suppose to go teach a class sooner or later but I think Petra needs me today as much or more then Abby will."

Molly nods and says " I will go report this to Max and see what his reaction to it is, as for the rest you know I will take care of it. I will have a bit of food sent to the room, As well as a new collar. A blue one, with the same info to mark Petra as who she is but you get the idea I figure if she can turn human. She should have the right collar. Thou I am unsure how it will make the rest of her class feel. Also I have no idea how her transforming between the two will affect her Pregnancy thou. Max made it sound harmless, so I got no idea."

You nod and say " I got this, I will look after the pup she will be fine." You kiss Molly on the muzzle before she leaves. And them lay down in the bed next to the pup and curl up next to her and hold her. You marvel a bit at how much bigger she is now, your partly shocked at the changes a little bit of positive thought can give them or you or whatever. you at least figure it's based on positive thought.