Babs is the first to notice

After cumming a few more times Harley brings it to an end, by now Steffi is somehow even further gone, her thoughts are completely blank, not even thinking of pleasure, but simply feeling it. Cass is still pumping into her best friend, **** for the next orgasm, and once it comes she still needs more. Babs is now gone too, her mind has faded after countless orgasms.

Harley turns off the pheromones and pulls out of Steffi, there is no noticeable changes at first, but then Cass cums again and stops thrusting, although Steffi is still bouncing on her cock, and Babsy falls sideway onto the bed having passed out. Harley cannot help but laugh, Steffi is the only one conscious, and she is still bouncing on Sandi's dick and her mouth and tongue seem to have not noticed Babsy is no longer there. But when Harley gives her a small nudge she too falls ending up on top of Sandi. Harley takes a box with some gifts in it and leaves it in an obvious spot, then leaves.

Ivy snaps to attention when she arrives. She had been doing what she always does with Harley gone, messing with plant chemicals hoping to find some interesting new formulas for Harley to use. So far Harley has not taken any of them. But she had used the idea behind them on Cas, er, Sandi, and said she would with Steffi. While Ivy wants to know how things went, she also wants to get fucked more, she needs it, but looking closer at her mistress she realizes that will not happen now.

"Heya Red, I am wiped, those bat gals can really go a while. Thanks to ya that is."

There was indeed one thing Harley took, something that lets her last a lot longer, boosts sexual stamina. Apparently, her magic cock retained the ability and also mixed it with her pheromones. Unfortunately, when it wears off some of the activity catches up to you, leaving you drained.

"Tell ya what, use your special Harlequin plant ya made. Yknow, the one that fucks you, and fucks you, and fucks you. And unloads in you, do that."

Ivy moans at the way she said that, so sultrily, and Harley is not even using any pheromones at all, but she is just so hot. Without thinking she summons the plant and is lifted up and stripped by its tentacles, three main ones move towards her, one into her mouth, one into her pussy, and one into her ass. Combined they are almost as good as Harley, well, not almost, but still really amazing. And she used some of Harley's semen so the plant helps dampen her **** need for the substance she is so addicted to. Ivy is quickly lost to the plant and does not even notice when Harley leaves the area to rest.

Later the girls wake up slowly and they take some time to come to. Babs is up first and moves to get dressed, Cass is close behind grabbing her own clothes and tossing hers to Steph. Cass then notices the box and moves to it.

"Mistress left us a gift"

"Oh? What more could she possibly give us?" Fully dressed Babs moves next to Cass who is lifting off the cover of the box, inside are three collars and a leash. It is clear who the collars are for. Babsy. Sandi. Steffi. To mark them as slaves to Harley, which is so fucking hot Babs feels her knees go weak and hears Cass moan. But the leash, who is that for? Wondering about that Babs puts her collar on and grabs Steph's to give to her, and is surprised to see her still naked and looking around confused, it seems she is taking longer to focus.

"Hey. Steph." Steph snaps to attention and looks at Babs, big smile on her face and head tilted sideways. "Are you okay?" Steph nods rather aggressively, clearly over excited. Babs holds the collar out to her and she crawls down the bed and sniffs it, then looks to Babs clearly confused. She is not the only one confused, Cass has noticed what is happening and is watching with a quizzical look on her face. Babs however is starting to understand. She puts the collar on Steph, no, on Steffi, who actually moans as she does so.

"Give me the leash Sandi."

"Here Babsy."

With the collars on their names have now changed to the nicknames Mistress has chosen for them. Babsy puts the leash on Steffi who blinks a lot. "Whaaaa?" Then she moans again and shakes her head trying to focus, but then any sense of intelligence leaves her eyes again.

"She is a puppy." Babsy is smiling, puppies are cute, Steffi as a puppy is super cute. She is so corrupted no part of her even misses her friend. Although, she is curious, she removes the leash and Steffi has the same reaction as when it was put on, but this time the small amount of intelligence stays.

"What happened?"

"You got fucked by Mistress of course." Sandi is quick to say.

"You are her puppy now, ours too."

"Oh. Okay, that makes sense. I like that. Oooooh, look at my titties. And my ass too!."

While she is clearly more intelligent than a moment ago, it is clear she is not actually intelligent at all anymore. Babsy is pretty sure she understands how it works and to test puts the leash back on. Sure enough the intelligence is gone, full puppy now, she then removes it, bringing her all the way to the cave like that would not be easy.

"I don't understand how this works." While Sandi does love it, she is a bit confused, although, she is mostly impressed Babsy was able to figure it all out.

"Simple, leash on, Steffi is a puppy fully. Leash off, Steffi is a person that is much like a puppy. Putting the leash on the first time sealed it in." Part of her wonders if Mistress told her that or if she deduced it. Then she decides it doesn't matter.

"Get dressed Steffi, we need to return home."