This one picks up right at the beginning of S7 "Potential". Some dialogue is taken from this and previous episodes.

...

It was a cold night when a small group made their way through Restfield Cemetery. Buffy lead the way with Rona, Vi, Kennedy and Molly trying to keep up. Spike walked behind them leisurely, smoking a cigarette.

"It's a standard patrol exercise", Buffy explained, surveying their surroundings. "Spike plays the vampire, you play the Slayers." He wondered if the girls could follow that plan. "Try to not get tackled. Keep your guard up."

They reached a small, familiar clearing near a tall crypt. Spike watched Buffy circle it and finally understood she was trying to sense for nearby vamps. He caught her eyes and raised his head; she nodded quickly.

"Spike, split. Sweep up to the north gate and come back, Rona and Vi will go first." Her commandery voice was kind of turning him on.

"Right", he confirmed and moved past them, deliberately almost brushing shoulders with her. She was blatantly ignoring him, but he knew she remembered. In his pre-soul days, they made a go at it by this very crypt, the patterned stone bruising her back in that special way she liked.

The Potentials looked behind him as he disappeared in the shadows. "Are there real vampires here?", Molly asked.

"Spike's a real vampire", Buffy asserted, handing them stakes. "But yeah, there could be others. I checked it two days ago, but we can't be sure." She walked around slowly, playing with her weapon. "You can never be sure." She spent her best years kicking the dirt by those graves.

"Vampires can see in the dark. They can smell you and hear your breathing from far away." She wasn't trying to scare them, though questioning Spike's realness set her off a little. Molly was taking notes.

"But you can hear them, too. They are rarely stealthy and digging your way out of a grave takes time." Plus Spike is just flashy by default. "Try to sense his presence." She could tell he wasn't back yet, just wanted to keep the girls on their toes. "Vi, Rona, walk around, keep your muscles warmed up. Check for danger."

...

Spike swaggered through the graveyard, not really expecting trouble. Buffy wanted some time to stew the girls, as if they wouldn't squeal if a tree branch touched them; he chuckled when their voices died down over the distance.

"Oh, mighty Slayer, how are us wee girls to fight the darkness?", he mocked the Potentials in a high-pitched voice, amusing himself. "We barely have pubic hair and have never tried an ale."

He changed the tone to a slightly less shrilling, pretending to be Buffy. "To defeat the foe, you must focus on your instincts and skills. Both of which I took years to develop and didn't have when I was your age."

"But Spike is so intimidating", he imagined the doe-eyed Molly speaking. "He listens to Sex Pistols and bleaches his hair."

"The vampire will not harm you, for he would get a bitch of a headache for trying." He had to admit his impression of Buffy was terrible. "And fear not any pain, since he is a creature so gentle even I, the Chosen One, didn't feel his fangs in my ass when he was taking me hard from behind-"

He stopped abruptly on top of a marble plate, turning around and sniffing the air. There was... something...

He jumped down and prowled around the area, senses heightened. He was getting too far from the north gate now, but the feeling wouldn't leave. Alert, he turned a corner and ran right straight into Clement, startling him.

"Spike!", the demon exclaimed, dropping a bag of groceries. "Um, what brings you around? You look good."

The vampire sighed, relaxing. The cemetery really was safe this time around. "So do you, Clem. Enjoying the crypt?"

His friend looked around awkwardly, collecting his shopping. "Yeah, it's a really great spot. I redecorated a bit, hope you don't mind. Um..."

"The place is yours, don't fret." He lighted a cigarette, leaning against a tree. "I got a new one anyway." Clem looked at him curiously.

"Oh, where are you staying now?

Spike smirked; it felt good to admit it. "The Slayer's house."

The demon opened his mouth in awe. "Wow! Good for you. She took you back then?"

"That she did."

"And the trip? Where did you go?"

Spike finished smoking, sensing the girls stayed idle long enough. "Long story for another time. I need to go now."

"Sure, sure", Clem smiled politely. "Hey, maybe we could meet up at Willy's? You know, sit down, have a pint, I'm dying to hear all about it."

If only his chain stretched that far. "I'll see to it." He nodded and turned around to leave.

Clem shook his head slowly, heading home. "Unbelievable."

...

Spike returned to the clearing quickly, noticing the two Potentials wandering away from the group. The way there were holding their stakes reminded him of Harmony role-playing "Fuck the Slayer" and he snickered, then reluctantly put on his game face. A twig snapped under his boot and Rona turned in the wrong direction; he grabbed her from behind, growling, then shoved her to the ground as she was still frozen with fear.

He slowly moved to the other girl, giving her time to react. She at least tried to attack him, but he manhandled her easily, forcing himself to growl through the urge to burst out laughing. He put his fangs to Vi's neck and she screamed bloody murder, hurting his ears. He stopped and morphed back to his human face.

"Okay... These two are dead. Why?", he asked, eyeing the group by the crypt. Buffy looked pissed, freezing her ass out in the middle of the night just to see her recruits become vampmeat. He could relate to the frustration, smelling Vi's blood just inches from his mouth.

Rona picked herself up. "'Cos the black chick always gets it first?"

"What was that, Rona?" Buffy snapped as Vi started squirming. Spike loosened his grip slightly; he didn't even realize he was clenching his fingers.

"I'm dead because he is a vampire." Brilliant deduction. "I don't have Slayer strength, slayer speed. I-it wasn't a fair fight."

Were those girls even trying? "Vi", Spike asked. "Do you think I care if it's a fair fight?"

"No... Um. No, sir". He enjoyed her terrified respect. "You don't play by the rules, and I have learned a valuable lesson of some sort." That you're powerless against me. "Ow!"

"Okay, Spike", Buffy warned and he let her go. Did he really hurt her if the chip didn't catch?

"You're right. You don't have Slayer strength, but that doesn't mean that you're not strong." Oh, the girl power bit. "You have inherent abilities that others do not have."

Spike zoned out for a moment, taking in the ambiance behind him. He was being paranoid, but the beating he took from the First still carried some after-effects. It wasn't until Buffy called his name that he tuned back into the conversation.

"Spike, what did your instincts tell you to do just then?"

She wanted theatrics and he could provide, replying in a menacing, hollow voice. "Hunt. Kill." Laugh. Ridicule.

"Come at me. Full speed", she instructed, walking toward him with a stake. She was probably going for a show of wit-over-strength to make the girls feel better about losing. He smirked and turned around, disappearing in the darkness.

"He needs to kill to live", he heard her voice. "That tells you everything you need to know."

Bloody hell, was he that whipped? Looking at her exposed back, he could barely force himself to attack her, and his growl was pathetic. Buffy moved out of his way and he didn't react in time, hitting a gravestone and falling to the ground. Was that her plan?

Buffy put a hand on his neck and oh no don't you dare straddled him. No, love, get up now. You don't want this, not in front of the kids.

"Instinct. Understand his, but trust yours." That line didn't make any sense to him. His hands hovered above the grass, cross-stance, inches from her thighs. He could feel her bloody pubis pressed against him. You have to get up, pet.

"You were chosen for a reason." To live short and violent lives. He groaned as she finally moved, but then looked down on him with worry. "Are you okay?"

"Fine." This was getting embarrassing. "Couple of ribs ain't quite set right." Well, that too. "I'm fine."

"Let me see..." Oh God, no. He heard muffled giggling. "Spike." She moved his shirt up, and he mumbled in protest, finally just grabbing her hand to stop her. "I'm gonna be okay", he urged. Their eyes met and the realization hit her, making her blush.

"That's hot", Rona commented from aside and he had to agree. That's it for the cover-up act.

"So, we're supposed to, like, make out with them or something?" Molly's remark would be funny if Buffy wasn't STILL STRADDLING HIM, now with added horror on her face.

"Careful, Buffy. Just when you think it's part of the lesson, he'll... hurt your arm", Vi added. Spike squeezed the Slayer's hand and she snapped out of it at last, sporting a mortified look and helping him up. He took a deep breath, moving behind her just in case the shadows weren't dark enough to hide the bulge in his pants.

"Molly, Kennedy, let's go. You're up. Next lesson." On how to ruin your badass reputation in under three minutes.