"Welcome to Sunshine," says Juliet. "And to my front porch and whatever you do don't hit the light, it'll set Sherlock on fire."
She kills ten. Four scatter; they go in all directions, so she goes ahead and picks one and gives chase and gets him half a block away.
[Brick place?] she asks Shell Bell, and Shell Bell vanishes her. (One of the fleeing vampires is still within sight of her and makes a despairing noise when she goes.)
Shell Bell fetches Sherlock next, and they are all right back where they came from, not five minutes later.
"Beautifully done," he says, grinning. "I'm a terrible bodyguard; I spent the latter half of that spectacle thinking about how unreasonably attractive you are."
"I didn't wind up needing bodyguarding, no harm done," she says, sidling up to him from where Shell Bell landed her. "Not a scratch on me. They were slow. Even startled they could've done better."
"I," he says, "would like to show you my nice comfortable new basement. And then make out with you in it."
And down the stairs they go.
The basement really is comfortable. All the windows are blacked out, but the lights work. Tony has managed to put together a respectable bed and populate it with respectable blankets.
Sherlock leads her straight there.
Kisses kisses kisses.
(...Is being turned on after dusting eleven vampires a Slayer thing, Juliet wonders but doesn't ask.)
Apparently being turned on after watching someone dust eleven vampires is, at the least, a Sherlock thing. So wherever their respective things are coming from here, it all works out very nicely.
The next day, when the gang's all hanging out at the brick building and Juliet has gone on another quick masked demon-busting excursion in L.A. to show off that "she can teleport", Shell Bell says:
"The critters you fight are nasty. I think... I had better leave you my fire wand, Juliet. And teach you to use it."
"About a year, but I could only practice at odd hours - I was holding down a job and sometimes showing up to school and poaching on the side and while there was plenty of beach there wasn't plenty of deserted beach. I can just teleport us all to the nearest - nighttime - beach with nobody around to watch you play with fire for hours," says Shell Bell, "and I'll help, too, I got instructions ahead of time but no in-the-moment teaching. And before you ask: no, it won't break, it can't, and you have to know something about how it works to use it at all so even a random demon who suspects it's a fire wand and gets it away from you won't be able to make even an uncontrolled fire with it unless it knows how to concentrate on it."
Shell Bell winks at him. "Very," she murmurs. "I'm going to duplicate the power the next time I have my hands on a hex."
This doesn't go unnoticed. "Oh, is that why he's coming along," Juliet snorts. "I don't know if it'll be so much fun when I'm fumbling around with the fire and periodically stop-drop-rolling in the surf, but whatever floats your boat."
"My Sherlock was nearly only interested in people who could beat her up, and then she watched me burn down a train station," says Shell Bell merrily. "The Memorial Dome a bit later didn't hurt either."
"You're in control of a bunch of things. Shape, location, temperature, how fast it consumes available fuel - it doesn't need fuel at all, you could have a floating fireball in a sealed chamber and it wouldn't take your oxygen if you didn't want it to let alone die for lack of stuff to oxidize, but it'll take anything you do want to feed it. If you lose attention on any of those things, the fire will be out of control on all counts and go on according to the laws of physics. You can get it back as long as it's contiguous. But you can't control more than one piece of fire at a time, so until you really have the hang of it and never lose your fire before you're ready, don't let it spread too far where it'll burn out intermediate patches."
"If it doesn't need fuel, can it burn in places where you wouldn't expect it to be able to?"
"Yeah. I used to practice cooking minnows from the inside - I couldn't do anything out where the bigger fish swim, but you can put fire inside of a demon if you want, it'd look funny on an autopsy but it'll add to your aura of mysterious power."
"Kickass," says Juliet. "I always wanted an aura of mysterious power. What else do I have to know?"