Six months later…

Lauren curled further into Bo's body, their forms fitting together familiarly. They hadn't had sex that night, one of the new rules to make their relationship work. Five nights a week at maximum, even if Lauren wanted more. It took a lot of the pressure off, Lauren knowing it wasn't her responsibility to sate Bo. Her job was just—this. Being there at the end of the day. Going to sleep with her and waking up with her. Sex was so important in the human world, but what Lauren had learned was that this was so much more important to Bo.

It was funny to think of how Kenzi had proved that. Bo had confessed how their relationship had changed the weekend after it happened, staring down at her feet guiltily. She must've thought it would end things for good between them. And yet, like Archimedes' bathwater, it had helped Lauren's understanding slot into position. Kenzi was Bo's best friend, true, but she was also her lover—and in the bedroom, she was a pet.

Lauren was the equal, even the dominant occasionally. She had a piece of Bo's heart Bo didn't give to anyone else. And she knew Kenzi had another piece, maybe bigger, maybe smaller, but she was so happy to be Bo's wife. Let other people be her one-night-stand, her fuckbuddy, whatever. All of them were just passing through. Lauren was the one she shared it all with.

And, anthropologically speaking, the living arrangement was fascinating. Bo had pulled some strings with Hale and gotten them an even nicer apartment, with room for all three of them. Kenzi was like Bo's roommate, her life sometimes barely intersecting with theirs, sometimes running right alongside it. And Lauren was her wife. She cooked for them, Bo and her best friend, and did their laundry, as well as her damnedest to get Kenzi to do her fair share. Of course, the only one Kenzi listened to was Bo, so Lauren had to nag Bo to nag Kenzi, and more often than not Bo just did Kenzi's chores herself, which somehow was far more irritating to Lauren than Bo occasionally fucking someone else (though with both Lauren and Kenzi feeding her, that happened rarely).

And, yes, Bo and Kenzi had sex. Sometimes Lauren found out about it when she came home from a late night at the lab to find the two sprawled on the floor, partners in crime, the collar firmly wrapped around Kenzi's neck. Sometimes, and especially on her and Bo's Off Days, she made it clear she was going to be out late and that if Bo and Kenzi used her bedroom, with the Egyptian cotton that put Kenzi's bachelorette pad to shame, they would have time to clean up before she got back.

Sometimes Lauren even watched. And took pictures. It was absolutely fascinating, a facet of human behavior that was scientifically completely unexplored. She'd thought of comparing her genome's to Kenzi's, since clearly she lacked whatever gene sequence that made Kenzi live in such… interesting harmony with Bo. But she liked it being her little secret. For now, the photos were purely artistic. She had thought of being a photographer before getting her degree, and she could've have asked to end up with better subjects. Certainly, Bo seemed to appreciate a lot of her ideas for "poses."

"Whacha thinking?" Bo asked sweetly, kissing Lauren's ear.

"Just about you and me and Kenzi," Lauren answered. Then, in a deadpan voice: "It's kinda weird, wouldn't you say?"

"I like it!" Bo replied, and her enthusiasm was infectious. It was an Off Day, true, but the rules didn't say anything about tickle fights. An oversight Lauren both regretted and didn't.

They stopped when they heard a jingle at the door. Kenzi's new collar; the formal one, Lauren called it. Although they'd kept the leather number they'd gotten at the Bonehouse for sentimental reasons, Bo had been quick to buy Kenzi something like a tiara for her neck, all platinum and silver bells, a status symbol for a human in the Fae world, like the jewelry and clothing Bo had bestowed upon Lauren.

"Should we?" Bo asked Lauren, giving her a pleading look.

Lauren couldn't resist those puppy dog eyes. "You spoil her," she said in acquiescence.

"She is very fun to spoil," Bo retorted, before eying the door. "Come in!"

The door opened minutely, letting Kenzi slip inside. She wore the pajamas she favored on most nights, but with the collar on she was like a different person. Shoulders slumped, eyes downcast, utterly submissive. Lauren felt Bo's pulse quicken, just seeing her pet like that.

"Kenzi wants to sleep with you," she said in her babyish 'pet' voice, daring a longing glance at their big bed.

"Of course," Bo said cheerfully, though Lauren added "At the foot of the bed!"

Kenzi broke out in a smile and ran over to the bed, barely stopping herself from throwing her body onto Bo's, instead climbing onto the foot of the bed. It was amazing, Lauren thought, the simple satisfaction a grown human woman could get from sharing a couple's bed.

"Does Bo wanna play?" Kenzi asked, still softly, curling up so her head was on Bo's legs.

"Not tonight, sweetie. Maybe in the morning." Bo turned to Lauren, kissing her cheek so neither of her lovers would feel left out. "Hell of a way to be woken up, huh?"

Lauren blushed at the thought of it. "Go to bed, succubus."

Bo settled smugly onto her side of the pillow, already picturing one of their rare, and exquisite, threesomes. Maybe in the shower…

She laughed suddenly. Lauren looked at her until she explained "Kenzi's licking my feet."

"Kenzi!" Lauren said harshly, and the human looked up at her guiltily. "No playing tonight. Remember, we let you in here to sleep."

Kenzi nodded glumly and trapped one of Bo's legs in her arms to use as a pillow. She snuck one last kiss, though.

Lauren maneuvered himself around to spoon with Bo while not disturbing Kenzi, ending up with a leg thrown over the succubus's waist. It was awkward, but it fit.

She dreamed of Bo and the family pet joining her in the shower.

A/N: So that's it, thank you for reading everyone. Sorry the story was so long, but, you know, it was a fun challenge getting Kenzi from Bo's platonic (straight!) friend to 'family pet' and thought all the verbiage was necessary to justify it. It ended up being three times the length of the story I promised, so if you were expecting sex in the first chapter, sorry, so was I. Thanks to beerbad/shinyalice for commissioning this story, and I hope she doesn't mind the Bo/Kenzi/Lauren at the end-I'm pretty sure it's one of her kinks. And if you'd like to commission your own story, send me an e-mail, my inbox is always open.