A/N:Hi! So, I have a bunch of these little blurbs that I want to write for Billy and Teddi that don't exactly fit into Arcade Dreams, so I'm gonna post them here! They won't be in any sort of chronological order, and I won't post any that contain major spoilers for the fic. This one takes place after season three and after the events of Arcade Dreams because…well, I mean it's no secret these two are gonna end up together. Hope you enjoy it!

"You know," Teddi said, applying a bit of mascara in the visor mirror of Billy's Camaro. "If you don't like babysitting, you don't have to come with me when I babysit." she shot him a playful look. Her legs were thrown over Billy's lap, and Billy's hand was mindlessly running up and down the length of her thigh as he drove. They were headed to the Wheeler's for the night. Karen had asked Teddi to babysit Holly for a few hours while she and Ted went out for a date night. When Teddi told Billy she'd be gone for awhile he had pouted until she finally said he could tag along.

"What else am I supposed to do? Sit around at home alone all night?" he said with a small scoff. If he ever had a night off when Teddi was working at the arcade he'd take Max and hang out until it was time for her to go home. Maybe they were too attached to each other or something. He didn't really care. "Besides, it can't be that bad, can it? Definitely not worse than babysitting Sinclair's little sister." he muttered. Teddi had babysat for Erica a few times and it had always gone pretty well, all things considered. Billy had joined her once and Erica had relentlessly bullied Billy to the point where they were arguing with each other nearly every five minutes. Needless to say, Teddi went solo to the Sinclair's from that point on.

Teddi laughed and shook her head. "Definitely not that bad. Holly's a sweetheart. Just no flirting with Mrs. Wheeler this time." she warned, nudging him with her knee.

Billy smirked. "Me? I'm harmless."

Teddi rolled her eyes. "Nothing about you is harmless, Hargrove," when they pulled up to the Wheeler's house Teddi slid gracefully out of her seat and started up the walkway to the front door before turning around and pointing a stern finger at Billy. "Behave yourself."

Billy flicked the butt of what would probably be his last cigarette for the next few hours into the driveway and watched Teddi as she walked up ahead of him. She was wearing a hot pink tank top (she'd never admit to it but Billy had come to realize it was her favorite color), black cut off shorts and his denim jacket. She had rolled up the sleeves in an attempt to make it fit a little better. "Can't make any promises…" he muttered to himself before slamming the car door shut and following after his girlfriend.

Mike answered the door. "Hey Ted- what's he doing here?" he asked, looking Billy up and down with an unimpressed look. The kids had more or less warmed up to Billy over the last few months, but sometimes they still butted heads. Mike especially. "Can't she do anything without you stalking her around?"

Billy opened his mouth to snap back a response, but Teddi nudged him in the side with her elbow. "He's not gonna be a problem, Wheeler, relax. I already told him I'm not splitting my money with him. Where's your mom?"

Mike rolled his eyes and stepped aside to let Teddi and Billy in. "She had to leave early. She paid me twenty bucks to keep an eye on Holly until you got here."he explained, turning towards the stairs. "Holly! Teddi's here!" he yelled up the steps, making both Billy and Teddi jump at the volume of his voice. "I'm going to the arcade, later!" he brushed past the pair and was outside before Teddi could get a goodbye out.

Billy awkwardly stood in the entryway as the sound of tiny, running feet grew closer and closer. Soon Holly came running down the stairs, her pigtails swinging wildly as she made a beeline for Teddi. "Teddi, Teddi, Teddi!" she squealed, jumping into the older girl's arms.

Teddi caught her effortlessly before placing a kiss on Holly's cheek. "What's up, munchkin? How ya been?" she asked, holding up her hand for Holly to give her a high five. Holly giggled out a 'good' before her eyes fell on Billy. Her smile faltered a little before she gave Teddi an unsure look. Billy almost immediately wished that he'd just stayed home for the night.

He wasn't terrible with kids. Teddi was always reminding him of that. He'd been great with the kids in his swim classes back when he worked at the pool. But that was different. He had authority there. Now he was just some random guy impeding on Holly's time with Teddi. "Holly, this is Billy. He's gonna help me watch you tonight, okay?" Holly eyed Billy for a moment longer before whispering something in Teddi's ear. Teddi only laughed and nodded. "Yeah, he's my boyfriend,"

This seemed to appease Holly. She smiled over at Billy, and Teddi mouthed 'high five' to him. He let out a small chuckle, holding up his hand in offering to the five year old. Her smile grew wider as she gave him a surprisingly forceful high five before Teddi set her back down. "Alright, Holly Jolly, how 'bout you go pick out a movie and I'll get some snacks?" she asked. And like a flash Holly was off once again. Teddi laughed softly, turning to Billy. "See? She's a sweetheart."

"Yeah, she's a pretty cute kid I guess," he shrugged as he followed Teddi into the kitchen. He watched her as she seamlessly moved around the room, grabbing two coke cans and a bag of popcorn before throwing it into the microwave. "When'd you get so good at all this?" he asked with an amused look. Teddi grabbed a sippy cup from one of the cabinets and filled it with apple juice for Holly.

"What? Babysitting?" she asked, Billy nodded. Teddi shrugged. "I've kinda always had a knack for kids I guess? I've been doing this since I was like...thirteen for the extra cash before I could get a real job." having a knack for it was putting it a little lightly if you asked Billy. He didn't think there was a kid in Hawkins that didn't absolutely love Teddi. Even Erica Sinclair liked her. She had this mothering instinct that was almost like a second nature. He'd even been on the receiving end of it after he had come home from the hospital last summer.

He didn't really know what it was that was triggering such a...weird response from him while he watched her ready their movie snacks. He'd seen her with kids before. At the arcade and the pool and all the babysitting jobs he tagged along on. But there was just something about tonight, watching her walk around the Wheeler's house like she owned the place and seeing Holly settled against her hip that was just… "Are you gonna ask me to have one of these things?" he blurted out.

Teddi momentarily paused as she was pouring the popcorn out into a bowl and turned to look at Billy with a raised eyebrow. "One of these things?" she repeated incredulously. Billy only motioned his hand back towards the den where Holly was waiting for them. Teddi laughed. "We're 18, Billy."

But not for much longer. Billy's 19th birthday was in a week. And between that and the fact that they lived on their own and had actual real jobs (aside from Teddi's babysitting, but jumping at the chance for extra cash was gonna be a hard habit for her to break) Billy was suddenly faced with the fact that they weren't kids anymore. He felt like if he blinked suddenly he and Teddi would be married and popping out kids. He was starting to feel a little sweaty.

"Yeah, but didn't Karen have Nancy young or whatever?" he asked as casually as he could, pulling off his leather jacket in an attempt to cool off.

Teddi turned to look at Billy with a concerned look. "...Are you freaking out right now?" this happened sometimes now. Ever since the Mind Flayer, Billy had been known to have panic attacks. Thankfully so far they hadn't been too bad. They were the worst at night when he'd have the occasional nightmare. But they weren't anything Teddi couldn't talk him through.

She knew that Billy was embarrassed by them. He thought they made him look weak. It was hard to try and make him see the panic attacks in the same way as the scar that ran down his chest. It was a battle wound. They just needed some time to heal.

Teddi took Billy's face in her hands. He shut his eyes and leaned into her hand. He tried to focus on the feel of the cool metal of the ring on her thumb. It had belonged to him. He'd given it to her about a month before. "Babe, this isn't something we even have to think about for a looong time, okay? Just breathe. Trust me, I'm not gonna be asking you to knock me up any time soon," she said with a small laugh. "It's sweet that you think about this kinda stuff though."

The wave of anxiety had passed just as quickly as it had come when he heard her comment. "I'm not sweet." Billy argued, pouting down at Teddi. She playfully rolled her eyes and went back to her tasks.

Teddi grabbed the bowl of popcorn and Holly's sippy cup and smiled back at him. "You totally are. You're a big 'ol softy," she teased, sticking her tongue out at him before heading back to the den. Billy chuckled and shook his head, grabbing the cokes and following after her. Holly was hopping around the room with a VHS in her hands. "What'd ya pick, Munchkin?" Teddi asked, setting the snacks down on the coffee table. Holly proudly held up the copy of The Dark Crystal. "Perfect choice! Teddi said. "A girl after my own heart."

Billy plopped down on the couch with a groan. "Is this another one of those nerd movies?" he nearly whined. The looks that Holly and Teddi shot him made him hold in any other comments he had. So instead he only muttered quietly to himself.

"I wanna sit next to Billy." Holly announced, jumping up onto the couch and settling in next to him. Teddi couldn't help but smile at the surprised, but slightly proud look on Billy's face that came from Holly's approval. She settled in on Holly's other side, giving one of Billy's knuckles an affectionate bite as he wrapped his arm around her.

He didn't end up hating the movie quite as much as he thought he would. That was usually the case when it came to movies that Teddi liked, much as he hated to admit it. He'd been a little worried about Holly watching it in the beginning though. It seemed pretty intense for a kid her age. But the way that the tiny girl watched in unblinking awe showed him that Holly Wheeler was a bit more tough than he had ever expected. He sure as hell would've been scared of the Skeksis at her age.

By the end of the movie he had two crying girls on his hands. Teddi did that a lot with movies. He'd practically been traumatized from the time she convinced him to watch E.T. and had been sobbing so hard she could barely speak by the end of it. "...This is happy tears, right?" he asked cautiously. "That was a happy ending, wasn't it?" Holly and Teddi both let out sad little sniffs and nodded. He'd never understand women. No matter the age.

"Stupid movie gets me every time…" Teddi sniffed again, wiping at the tears on her cheeks. "Okay, Hol. I think it's time for bed, huh? We gotta get you to sleep before your mom and dad get home."

Holly shook her head wildly as her expression grew into one of worry. "No, no, no. I don't wanna." Teddi frowned down at her. Usually she didn't have any issues with getting Holly to go to bed. She picked up Holly, pressing her forehead against hers.

"And how come? You're already up past your bedtime, missy."

Holly curled up against Teddi as if to shield herself from something. "The wall monster," she whispered, pouting up at Teddi. "I don't want it to get me like it did Will."

Teddi looked over at Billy, her mouth opening and closing as she thought of what to say. Of course kids were scared of monsters hiding under their bed at night. He and Teddi both had been afraid themselves as kids. But for Holly to be afraid of a Demogorgon, much less know what it was was something neither of them had been expecting. And Teddi would definitely need to have a talk with Mike.

"A wall monster, huh?" Billy asked. "I don't know if Teddi's told you, Hol, but I've slayed a couple of monsters before. So how 'bout you and I go up to your room and make sure the coast is clear, huh?"

Holly looked up at Teddi uneasily before finally nodding. Teddi passed Holly over to Billy, and the three headed upstairs towards her room. Convincing a kid that there was no such thing as the boogeyman was one thing. Convincing a girl that had seen a monster before was completely different. Billy was almost four times her age and even he was afraid of the things that went bump in The Upside Down.

Holly's arms tightened around Billy's neck the closer they got to her bedroom. He carefully nudged the door open all the way, the pair of them peering in slowly. When he was sure that she saw the coast was clear he set her down. Teddi and Holly both watched from the doorway as Billy searched the length of her room for any sign of monsters. "See, Hol? No monsters. I even checked under the bed," Holly eyed her room a little warily before she finally nodded. "If you hear anything and get scared you just call downstairs for me, okay?"

Teddi could nearly feel her heart swell as she watched Billy and Holly. This was what she loved so much about him. Deep down Billy was such a genuinely sweet guy underneath the bad boy exterior and the deep seeded emotional trauma. She sort of couldn't help but wonder what it might be like to have a little Billy or Teddi running around. But not for a long, long time.

"What do you say, Munchkin? You ready to brush your teeth?" she asked, placing a comforting hand on the top of Holly's head. Holly only nodded before running off down the hall. "Thank you." she whispered to Billy before taking off after her.

Billy headed back downstairs, plopping down onto the couch in the den and flipping through the channels until Teddi finally returned. She let out a heavy sigh, flopping down next to him and throwing her legs over his lap. "She in bed?" he asked, absently running his hand up and down her leg once again.

Teddi nodded and rested her head on his shoulder. "See what I told you? You're a big ol' softy," she teased. Billy let out a short laugh and shook his head. "That was adorable! I don't think I'm gonna be able to babysit her anymore without Billy the Monster Slayer coming with me."

"Well, I am a monster slayer."

Teddi looked up at Billy, chewing on her bottom lip to try and keep herself from smiling. "You know, all of that up there with Holly...maybe I do have a little bit of baby fever…" Billy visibly froze before he looked over at her with wide eyes. Teddi laughed. "Sorry, sorry. I was just kidding. You make it too easy sometimes." Billy scoffed, pushing Teddi's legs off his lap dramatically and crossing his arms. She only giggled. "Awww, come on, babe. I'm just playing around," she pouted. "I will say, though... it's always pretty hot when you get all protective like that."

Billy groaned. "Woman, stop teasing me. I know you're not gonna fool around with the kid upstairs."

"No…" she mused, resting her chin on his shoulder and giving his jawline a quick nip. "But I didn't say anything about once we got home." Teddi smiled up at him, her nose scrunching slightly. Billy's pout almost immediately fell, and he turned to look at her, his eyes twinkling ever so slightly.

"You're a pain in my ass, Weird Girl." he teased, his hand gently cupped her cheek, slowly inching back into her hair as he pulled her in for a kiss. Teddi let out a content hum, her arms wrapping around his neck.

"Billy!" a tiny voice called from upstairs. Billy groaned and pulled away from Teddi, resting his forehead against hers and letting out a sigh.

Teddi let out a soft laugh. "Duty calls, Monster Slayer."