This is part of the Pieces verse. Can be read as a standalone fic but will make more sense contextually if you've read Pieces.
Rachel ran into her bedroom and pulled out her phone to FaceTime Kurt.
"Pick up, pick up, pick up!" she said to herself as she paced around the room. She was acutely aware of the fact she didn't have long. Santana could walk in here at any moment.
She wasn't best pleased when she found out Kurt knew about them. They were supposed to be keeping it between themselves, but Kurt had caught them kissing one night at a party. They didn't see him watching them, too caught up in the moment with each other to realize, but he of course confronted Rachel about it later on and took no shame in teasing her about it.
She tried to deny it at first, but it was no use, so she gave in and told him everything on the premise he wouldn't mention to Santana that he knew. She didn't want her to freak out.
Now she was pretty glad that Kurt knew after all, because her nerves were bubbling over tonight and she needed him to calm her down.
After a minute or so of waiting, Kurt appeared on the screen, and Rachel breathed a sigh of relief.
"Kurt, thank god! I'm freaking out right now."
"What? Rachel, what's going on!?"
"I think tonight's the night!"
Kurt shook his head in confusion.
"The night for what? You've lost me…"
"You know! For Santana and I…"
Kurt stifled a smirk. He was catching on by now. Rachel could be so prudish at times, and that was saying something, coming from him.
"I think she wants to do it…" Rachel added.
"Ohhhh, I see. And what's the problem? You don't want to?"
"No, no, no I do it's just…you know. It's a big deal!"
Kurt had no chance to respond before they heard a knock on the door.
"Rach? You alright in there?" said Santana.
Shit.
"Yep, I'll be out in a minute!" Rachel said, her voice notably pitchy. Oh damn she was nervous alright.
She waited until she heard footsteps retreat away from the door again before retrieving the lingerie to show Kurt.
"What do you think of these?" she asked, holding them up on the camera.
"I think nothing's gonna happen with those daggers. Even I know that." Kurt raised his eyebrows and Rachel looked down at her hands in realization.
She found somewhere to prop her phone up and began vigorously filing her nails.
"You're right. I have no freakin' idea what I'm doing." Rachel sighed.
"Just take a deep breath Rachel. You're acting like you've never had sex before. Besides, it can't be much different than sleeping with guys right?"
"I don't know. She's just beautiful and charming, and she's had girlfriends since she was like 15. How am I supposed to compete with that?"
Kurt smiled. He was still getting used to hearing Rachel talk about Santana in this way. She definitely had it bad.
"So that's what this is about?" He said softly, watching as Rachel excessively preened herself in the mirror.
"You need to get it together, Rach. Look in that mirror. Look how hot you look. Hot as hell. And any man or woman would be lucky to be with you."
Rachel looked down, smiling appreciatively at Kurt's words.
"Now you have a hot date waiting out there for you. So go get her. It's fine, you've got it, you'll be okay."
Rachel took a deep breath and nodded, mentally talking herself into this.
"Relax, okay. Just enjoy it." Kurt enthused.
She said her goodbyes to Kurt before checking herself in the mirror one last time. When she walked back out, Santana was sipping her wine on the couch, watching her intently.
"Sorry, I was just cleaning up."
Santana smiled knowingly.
She said nothing as she stood up with their wine and walked towards the bedroom where Rachel hovered nervously in the doorway. She threw her a flirty smile as she entered, waiting for Rachel to follow her.
Rachel felt hot; half from the nerves and half from being turned on by Santana's bold confidence. She closed the door behind them and sat on the bed, watching as Santana finished her wine. When she had finished it, she set the glass down and turned around to Rachel.
"Took you long enough." she quirked her lips. Lips that Rachel knew were ridiculously soft and inviting.
"Sorry…the room was just a total mess, I didn't want you to have to see like clothes and stuff everywhere." Rachel rambled.
"Are you forgetting we now share this room? Most of those clothes are probably mine." Santana flirted.
The heat rose in Rachel's cheeks as the sexual tension hung between them.
"Thanks for dinner. It was great." she said, trying to ease the atmosphere.
"You're welcome." Santana replied confidently, reaching behind her to tie her hair back. By now she was standing right in front of Rachel, and the smaller girl could feel her heart beating in anticipation.
She swallowed as Santana climbed on top of her, straddling her.
"Hi." Rachel said. She'd never had Santana quite this close before.
"Hi." Santana replied, a mischievous glint lighting up her dark eyes.
"I just wanted to say…" Rachel began, but was quickly interrupted by Santana removing her shirt, tossing it carelessly to the side. It landed on the bedside lamp casting a dark pink glow in the room.
"What?" Santana said softly, tucking Rachel's long hair behind her left ear to expose her neck. She knew she had the smaller girl completely at her mercy, as she began to kiss her neck.
"Nothing." Rachel sighed, giving into the pleasure.
She tipped her head back and began to gasp at the sensation, exposing more skin for Santana to suck at.
When Santana pulled back to look at her, Rachel moved in eagerly to kiss her.
"Your lips are shaking, Rach." Santana noted.
"Sorry…" Rachel blushed. She wasn't quite sure why Santana was having such an effect on her. She felt like she had no control over her own body.
"It's okay, just relax." said Santana.
She resumed the kiss, deepening it this time, laying Rachel back on the bed. She moved downwards to unbutton Rachel's shirt, leaving a trail of kisses up her stomach as she did so.
Rachel began to breathe heavier as she felt Santana's lips come into contact with the sensitive skin. She was unable to take her eyes off her lover.
They were both dressed down to their underwear, and Santana moved back up the bed to kiss Rachel.
"Is this okay?" she asked tentatively.
Rachel could only nod, she'd lost the ability to speak at this point.
"You're so beautiful." Santana added, as she caressed Rachel's face.
The kissing intensified, and Santana pushed Rachel back again so she was laying on her back, before climbing on top of her. She traveled down her body until she reached her legs, parting them gently, as she began to kiss the sensitive skin of her inner thigh.
Rachel's soft pants encouraged her onwards.
When Santana raised her head to make eye contact as she kissed, Rachel was worried she would come from that alone. Her breath was ragged, and she was desperate for Santana to touch her where she needed her the most.
"Do you want me to go down on you?" Santana asked, right on cue.
"Yes!" Rachel whispered eagerly. Of course she did.
Santana peeled off Rachel's soaked panties and inched closer. When her mouth finally made contact with Rachel, she watched as Rachel arched her back and groaned. The sight caused her to let out a moan of her own. She loved getting Rachel all worked up.
When Rachel came with a "oh fuck!", screwing her face up in pleasure, she was a lot quieter than Santana expected. She always thought Rachel would be such a loud mouth, considering she did nothing but talk. She liked seeing this other side of her.
She drew her orgasm out by working her tongue in lazy circles, before settling on top of Rachel again to kiss her.
Rachel moaned again as she tasted herself on Santana's lips. The one and only time that Finn had gone down on her, he'd spent ages in the bathroom afterwards gargling mouthwash.
"Was that okay? Was it good for you? How do you feel?" Rachel asked between kisses.
Santana giggled. She should have known Rachel would be the kind of girl to want to talk afterwards.
"It was more than okay, it was amazing." she said, pulling Rachel in for another kiss.
"But," she continued "I'll feel even better when your fingers are inside me."
Rachel blushed, but she was of course more than willing to oblige. She had been dying to touch Santana, but this was the part she had been nervous for. What if she sucked?
It took a little while for Rachel to find the right rhythm. She had gone in there fast and frantic.
"Um, maybe just a little bit slower." Santana had said.
Rachel took direction well and adjusted the pace.
"Like that?" she asked.
"Yeah." Santana whispered, her tone signaling how turned on she was.
Rachel's movements began to elicit loud moans from Santana, a sign she was doing it right. Santana further affirmed this.
"Fuck baby, that's it. Don't stop!"
Rachel blushed under the dark lighting. Santana had never called her baby before. She liked it. She liked it a lot.
She began to kiss Santana's neck.
"Shit…" Santana let out.
"Are you okay?" Rachel checked.
"Yeah, I'm fine. You just feel so good."
As Rachel smiled bashfully, almost proud of herself, Santana couldn't help but let herself be vulnerable. She reached out to brush Rachel's hair away from her face.
"I really like you." she admitted.
Rachel's smile grew wider and she leaned down to kiss her lover. She really liked Santana too.
As both girls lay breathless and content, Santana propped herself up on her elbow to watch Rachel with a knowing smile.
Rachel sighed contentedly. It had definitely been an experience. She met Santana's eyes, nervous but inquisitive.
"So did you, you know…?"
"Yeah,duh…" Santana smiled. She found this shy side to Rachel so endearing. Of course she came, wasn't that obvious?
"Me too." Rachel said.
"Yeah, no shit!" Santana laughed, causing Rachel to laugh with her, raising her hands to her face in embarrassment.
"I hope I didn't hurt you. You know, at the start."
Santana shook her head.
"You didn't, it's fine. Some girls like it fast like that, but for me, I'm all about slow and gentle. That's the fun part of all this, learning each other's bodies and what we like. Besides, it was your first time with a woman so…"
"Oh great, was it really that obvious?" Rachel sat up abruptly, covering herself as she suddenly felt extra vulnerable and embarrassed.
Santana sat up next to her, but Rachel refused to look at her.
"I mean, a little but…so what?"
"Sorry, it's just…" Rachel let out a deflated sigh. Santana reached out to tenderly stroke her hair, urging her to speak what was on her mind.
"Uhm…you're just like…the first girl that i've been into that has actually for some reason been into me too, and…I just really don't wanna screw this up."
"You didn't screw it up…" Santana frowned.
"This is really embarrassing." Rachel buried her head.
"No you didn't screw it up. What are you talking about? Everyone has a first time."
Rachel finally turned to look at Santana again.
"Seriously." Santana affirmed, trying her best to reassure her. "Mine was the worst."
"Really?" Rachel asked.
"Yeah." Santana shrugged. She and Britt had no clue what they were doing when they first started sleeping together at the tender age of 15.
"Worse than this?"
"This wasn't bad." Santana shook her head with a smile.
"You weren't faking it?"
Santana laughed at that.
"No, I wasn't faking it. Are you kidding me?"
This seemed to dissolve Rachel's insecurities as she joined in on the laughter, flopping back on the bed, Santana doing the same.
"This is kind of nice…" Santana admitted.
"What is?" asked Rachel.
"Talking and stuff afterwards…I've never really done that before."
"What, you mean you usually just sit in silence?"
"Well no not exactly, but I don't usually talk about sex and what we've just done, it'll just be like…small talk. I've never had anyone like…check in on me as much as you have. It was nice."
"Not even Brittany?" Rachel raised her eyebrow, surprised.
"Not really, no. Britt always tried to talk when we first started hooking up, but I always shut her down. Obviously I got better at the whole talking about feelings thing, but it never really expanded to the bedroom. I guess by the time I started being more open about how I felt we were already comfortable with the sex part, so we didn't need to talk about it much. Our post-sex talk was always very lighthearted and jokey. Nothing too deep, you know?"
"Well, I'm quite a deep person Santana."
Santana burst out laughing. Talk about stating the obvious.
"Yes babe, I know."
Rachel smiled. That was the second time Santana had called her a pet name that day.
"I'd really like to do this again." she admitted.
"I'd like that too." Santana smiled..
"Yeah?"
"Mmhm" Santana nodded.
They moved into kiss again, giggling as they did so. Neither of them could have ever guessed they'd end up in this situation. There was a time where they were at each other's throats, and now they couldn't keep their hands - or mouths- off each other.
Several hours later they sat on the bed in their underwear, watching late night TV with a large share bag of vegan cheetos. The new dynamic between them was unspoken, but it definitely felt right.
It was a night of firsts.
Rachel was glad Santana had been her first girl, she couldn't help but secretly wonder if she would be her last.