Cass walks in on them

Suddenly the door opens, Babsy forgot to lock it, Steph doesn't notice, still moaning on the bed, but Babsy turns her head to look and sees Cass standing there in shock. It is hard to read her emotions, which is normal when it comes to Cass, but Babsy has a feeling that the difficulty now comes from the variety of emotions, the dominant one is definitely shock, which makes sense. The ones she cannot see are a mixture of jealousy, hurt, confusion, and a little bit of lust as the pheromones start to take effect quickly. The sex has made them rather potent in the room. Knowing this Babsy takes advantage by approaching Cass and simply closing the door to help keep the pheromones in. This causes her to snap out of her shock, which took an unusually long time, the pheromones must have hit her harder than expected, on top of the actual shock of the scene she walked in on.

"What happened?" Knowing Cass it is obvious she is asking several questions at once. She is questioning what happened to Babsy, and what happened with Babsy and Steph, and also why Steph is so out of it right now. Babsy moves closer to Cass who tenses up but does not move away and whispers into her ear.

"The changes to my body included growing a dick, and I just used it to fuck Steph. Would you like to try it out Cass?" With that last thing said she lightly nibbles at Cass' ear and squeezes her ass causing Cass to look at her in surprise, but this time Babsy can see the lust in her eyes, the pheromones are stronger now than when she seduced Steph, and are making quick work of Cass.

"Try? But, you and Steph?"

"Oh sweetie, we are not a couple, we are just having fun, and you can have fun too. Here, start slow, taste it." With that, Babsy grabs Cass by the shoulders and guides her down to her knees causing her to have her face right in front of Babsy's cock.

"Taste?" This time her voice is a bit off, vacant almost, the pheromones are continuing to hit her hard, all resistance is gone and she is quite horny now. So, naturally, she does as suggested and licks along Babsy's cock, tasting the mixture of Babsy and Steph's juices and letting out a moan at the delightful taste. At this point, Steph is starting to come back to herself and only just now notices Cass is there, and she too lets out a moan at the hot sight of Cass licking Babsy's cock. Steph rolls off the bed and crawls over to them, as she does she thinks about how good it feels to crawl along the floor, but that is something to wonder about later. For now, she is going to join Cass in tasting that wonderful, delicious. And maybe make out with Cass a bit, that sounds hot too.

First, though, she joins Cass in licking along Babsy's cock, which causes Cass to momentarily stop as she notices Steph's arrival, but she does not stop for long before joining Steph in the double blowjob. After the two lick the cock together for a bit Steph stops and speaks up.

"Put it in your mouth Cass, trust me it is soooo much better that way." Without any hesitation, she does so and her eyes roll up as she tastes some of the pre-cum that was on the cock and she cannot help but agree that yes, this is indeed better. Steph meanwhile alternates between licking the parts of the cock not in Cass' mouth as she bobs up and down on it, and licking the pussy that is still there beneath the cock, before quickly focusing there. It is not as tasty as the cock, and the cum will not be as delicious as what comes out of the cock, but that doesn't mean it isn't tasty and won't be delicious in its own right.

After some time of Cass sucking her off and Steph licking her, she has a dual orgasm. Cass happily guzzles down the cum while Steph enjoys licking her reward up. Steph remains unchanged for now while Cass gets her first changes. Bigger ass, slightly bigger tits, Babsy does have a preference after all, and of course, the same mental change as Steph got the first time she was changed. The one that keeps them from talking about the source of the changes, and makes them addicted to said source. Once the orgasm is done Babsy pulls back causing the two women to fall forward trying to follow her, landing on their hands and knees.

"Get on the bed you two, I have an idea." The batgirls are quick to obey as they clamber onto the bed, excited to see what comes next.

"I think its Cass' turn to get fucked, but I don't think Steph should be left out, so why don't you try eating Steph out while I fuck you Cass?"

"Yes." Short and simple answer, very much like Cass.

"I would really like that, as long as I get to be fucked again after."

"Oh but of course you can be fucked again Steph, I haven't taken your ass yet."

That is just what Steph wanted to hear, so she happily positions herself on the bed with her legs spread. Cass crawls between her legs and sticks her ass up in the air, much like Steph had done earlier because she too knows what Babsy likes. And without any further prompting she shoves her tongue into Steph's pussy, happy to do so since there is still some delicious cum in there, and besides, she always had a thing for Steph.

Babsy walks up to the two of them and aligns her cock with Cass' entrance before thrusting in, Cass briefly stops eating out Steph to let out a moan, but it is short lived as Babsy grabs her head and shoves it back into Steph's pussy, something Steph very much appreciates. Steph just leans back and enjoys the pleasure Cass is giving her, letting out wanton moans and enjoying the feel of Cass' muffled moans on her pussy as Babsy keeps her head shoved in the whole time she fucks her.

By the time Babsy finally cums both of the other girls have lost track of how many orgasms they have had, and with her 4th orgasm of the night Cass changes again. Babsy has a different idea of how to alter Cass. She thinks it would be hot for someone so normally in control to lose said control, and what would be hotter than to do so by becoming so horny she can only think of sex. Of course as usual this is only the beginning of such a change, that is the end result, the final goal. Well, that and complete submission to Mistress Harley of course.