Cassie uses the remote and Salalai and gives the girl a mesmerizing pussy, while Maddie tries to come clean with the pet girls and explain matters, to mixed results. Kara, Kat, and Hoshi work through their feelings about the revelations, but their animal instincts ultimately rule the day. Maddie and her family finally locate a user's manual of sorts, which makes them aware of what's to come. Dana transforms in a park and sets off an orgy, and Cassie finds herself doggishly submitting to Sally.

Allie accidentally lets slip that she and Jenny are related around Hoshi, which causes some strain on their sexy times. Tina starts thinking about ways to monetize her milk, but Maddie has her own plans for the would-be dominant woman involving their adult baby Ruth. Cassie and her friends finally ambush Leila and Maddie afterwards, but it doesn't work out exactly as planned. Instead, Dana and Miguel get zapped again; he gets magical sexual endurance, and she gets turned into a weredog...

Tina has her date with Allie and spreads the milk. Dana gets the heat again, and Allie happily succumbs to it when she visits after escort duties. Maddie and Leila play house with adult baby Ruth. Jenny and Hoshi visit a 'pet-friendly' BDSM club but find it isn't quite what they're looking for. Kara edges toward cowdom, in a behavioral sense.

Maddie and Leila learn some disturbing facts about the recently infantilized Ruth, and Dana winds up seducing her roommates but the morning after regret and recriminations are severe. Meanwhile, Jenny decides to top Allie for her daughter's cam career, and later seduces a coworker into bovine petplay at the office.

Maddie starts to realize that some traits seem contagious. Tina gets zapped again, making her lactation spreadable as well. Maddie and Leila decide to ditch school for a few days to figure things out, but a new function of the device reveals itself, and Leila winds up zapping an old bully of theirs, who they chance to meet on their mini-vacation. Meanwhile, Cassie starts putting the pieces together, but wrongly, while Dana and Miguel have issues at home thanks to their new nudism.

Maddie, Leila, and Cassie engage in a petplay threesome, after which Cassie gets a more advanced form of nudism. Meanwhile, Jenny, Allie, and Hoshi are having a lesbian pet threesome of their own, and spreading their fetishes to the puppy girl. The following day sees Cassie finding the device, but making the same mistake as Leila did, uses it on her friends Dana and Miguel, bringing them into the fold.