The next day while Lexa was in the kitchen making Aden his lunch, Callie went to go see who knocked on the door.

"Hey Clarke, what are you doing here?" Callie asked confused.

"I'm being forced to study."

"Huh?"

"Lexa will understand."

Once Clarke went to the kitchen her jaw dropped. Lexa was wearing light green very short sleep shorts that barely covered the bottom of her ass and showed her very long tan legs, with a matching cropped sleep shirt with the first three buttons undone. It was also the first time Clarke saw Lexa's natural hair and it was extremely curly.

"I didn't know my study buddy had curly hair," Clarke said as her eyes roamed up and down Lexa's body.

"Clarke what are y- oh my god I completely forgot." Lexa then noticed Clarke was staring and started to blush.

"Forgot what?" Callie asked confused.

"Clarke and I have to study for a science test. But I promised Aden I'd bring him to the arcade and movies."

"That's fine, I'll bring him."

"Are you sure?"

"Of course I love spending time with him." Callie replied.

When Callie and Aden left the girls went up to Lexa's room. Even though her parents were at work and no one else was home they went upstairs because Clarke said she wanted to be in Lexa's comfortable bed.

They were about three-fourths of the way through with making the flashcards when Clarke started to get distracted.

"This one I actually don't know, hmm." Lexa hummed as she bit her lip, one hand flipping through the textbook as her other hand dragged up and down her neck without realizing.

Clarke's eyes kept darting from the adorable glasses above the bridge of Lexa's nose to the freckle on her top lip, to the rest of Lexa's lips that she was biting, down to the long thin fingers dragging up and down her neck, to her chest were the first three buttons of her shirt were undone, then back up, over and over again. She bit her own lip trying to hold back a smirk as she realized that Lexa wasn't wearing a bra.

"Oh, it's between the diaphysis and the epiphysis, write that down on your flashcards." Lexa said as she wrote on her own cards.

"Wait what?" Clarke said getting out of her trance.

"Write down between the diaphysis and the epiphysis on flashcard 14."

"Can you do it for me?" Clarke asked as she turned on her back to look up at the ceiling.

"Clarke." Lexa said warningly.

"Fine."

"Okay Clarke," Lexa said licking her lips, "what are the bones of the finger known as?"

Clarke sighed as she stared at Lexa's lips again.

"Is it tarsus, metacarpals, carpals, or phalanges?"

"Uhhhh," Clarke said as she kept staring at the brunette's lips, watching as Lexa's tongue poked out swiping across her lip once again.

"Clarke this is so easy, I know you know it."

"I'm thinking."

"Come on it's not hard, Aden probably knows it," Lexa said as she wrote on another flashcard.

"I have an idea, why don't we take a break from studying your way, and study my way for a while, then take a snack break, and after go back to studying your way."

"Fine but answer the question first."

A smile grew across Clarke's face, "What was the question again?"

"What are the bones of the fingers kn-"

"Phalanges." Clarke said cutting Lexa off as she wrote it on her card.

"Okay, so what's your way of studying?" Lexa asked.

"Ask me where the bones are and I'll tell you."

"Okay." Lexa said going to the page in the textbook with the body diagram, "Where's the humerus?"

"There," Clarke said pointing to the upper arm bone in the textbook.

"Good. How bout patella?"

Clarke pointed to the knee.

"And the scapula?"

The blonde pointed to the shoulder blades.

"What about the femur?"

"Hmmm," Clarke hummed as she looked down at Lexa's thighs, "I think I need a different diagram."

"Which one?" Lexa asked as she flipped through the textbook.

"No like a real one."

"What?" Lexa asked confused.

"Like you."

"Huh?" Lexa said even more confused.

Clarke sighed and dipped her head between Lexa's lower thighs and kissed them.

"I think the femur is here." Clarke said between kisses, each kiss going higher and higher.

"Oh. Oh! I- I understand now." Lexa said nervously.

When Clarke got to the hem of Lexa's sleep shorts she went to the other thigh. "And here." She said kissing her way up again.

"Y- yup."

"What's next?" Clarke sakes resting her head on Lexa's thigh.

"What about the fibula?" Lexa asked.

"The what?"

"Fibula."

"Oh, the sternum? Well, I'm pretty sure that's right here." Clarke said moving so she was hovering over Lexa, she put her hands on the buttons of Lexa's shirt, "Can I?"

Lexa bit her lip as she thought then nodded her head and said yes. She knew it was a bad idea, being in the house where her homophobic parents lived and all, but they weren't home.

"Then I think it's right here." Clarke then started undoing the buttons of the brunette's shirt and kissed her way down.

When she got to the waistband of Lexa's shorts she looked up at the brunette, "What's next?"

"You umm, you still never said where the fibula was."

"The pelvis? Correct me if I'm wrong, but I think that's right here." Clarke kissed both sides of Lexa's hips, then with the pads of her fingers, lightly traced the pelvic bone from where it started to where it ended, letting her hand slip inside Lexa's shorts.

"Yup, yeah, you're right." Lexa said nervously as she felt one of the blonde's fingers gently tapping on her mound.

"What's next?"

"I- umm I- I don't know."

Clarke smirked as she put her hands on either side of Lexa's shorts and gave a slight tug, once she saw Lexa nod her head and lift her hips up a little, she slowly pulled the shorts down.

"Well the pubic bone is right here isn't it?"

Once the shorts and underwear were off Clarke kissed the area, ending in her sucking there.

"Mmmh." Lexa hummed as her hips canted up.

"If you ask me," Clarke said resting her head on Lexa's thigh, "I got the bones down pretty well. How about I move onto the muscles?"

"O- okay." Lexa answered.

Clarke moved so she was hovering over Lexa again.

"These," she said giving the brunette a kiss, "are lips."

Clarke gave her another kiss and gently bit down on Lexa's bottom lip, tugging on it a little before letting go.

"And these are the trapezius," Clarke said moving down to Lexa's pulse point area. The blonde kissed it then sucked earning a soft moan from Lexa.

"The rectus abdominis muscles." Clarke said leaving wet kisses down Lexa's abs, which were flexing with every touch.

"Further down we have the gracilis muscles," Clarke said kissing her inner thighs.

"Oh, and we can't forget about the gluteus maximus muscles," Clarke said earning a laugh from the brunette which turned into a moan when she felt Clarke squeeze her bare ass. Clarke squeezed again, getting another small moan from Lexa.

Clarke moved back up so she was hovering over the brunette once again, "Should we move onto the female anatomy?"

Lexa nodded her head in response causing Clarke to smile.

"Here we have the breast." Clarke palmed both breasts, massaging them, smiling as she heard little sighs fall from the brunette's lips.

Clarke's pointer fingers then started to trace around the nipples, "These are the areoles."

She then gently squeezed the nipples between her thumb and forefinger, "The nipples."

Clarke's smile grew at the moan she got in response and flicked one of the hardened nipples with her tongue as her hand kept rolling the other one.

The blonde's smile got wider as she heard her name fall from Lexa's lips. Clarke then wrapped her mouth around the breast, sucking as her tongue swirled around the nipple.

"God Clarke," Lexa moaned as she arched her body into Clarke's, "you're mouth feels..." Lexa trailed off as a gasped fuck came from her lips when she felt Clarke softly bite the nipple in her mouth.

Clarke then kissed, sucked, and nipped her way down to Lexa's center making sure to leave little marks. She stopped above her waist and looked up and Lexa.

"Can I keep going?" Clarke asked.

"Really Clarke?" Lexa said letting out a breathy laugh.

"I just wanna make sure."

"Of course you can keep going. Please keep going."

Clarke smiled as one of her fingers then ran up the brunette's slit causing her hips to jerk up.

"This is the vulva."

She let her finger run down Lexa's slit teasing her entrance a little before moving down further so her head was in between her thighs. "Labia majora." She said right before licking Lexa's outer lips that were already getting slick from arousal.

Once Lexa felt Clarke's warm, wet tongue she let out another moan, much louder than the others, and lifted her hips up, trying to seek more of Clarke's tongue when she moved it away.

Clarke smiled at the reaction she could cause from just a simple touch and then licked back up the slit, stopping at her clit. To wrapped up in what was happening, she forgot to name what the little bundle of nerves was called before she flicked it with her tongue.

She flicked it a couple more times until her name pleaded from the brunette. Clarke sucked on Lexa's clit gently while her tongue drew lazy circles on it. Once Clarke decided to use a little more pressure Lexa's back arched and her hand went to Clarke's head. The blonde looked up at her smiling into her center as she watched Lexa's face become flushed.

"Fuck Clarke." Lexa moaned as she encouragingly tugged on the blonde wavy hair when she felt Clarke suck on her clit a little harder than the first time she ate her out.

Clarke let go of the brunette's clit and ran her tongue down the girl's slit to tease at her entrance. She let the tip slip in, moaning at the taste, before taking it out causing a whimper from Lexa.

She smiled into her then finally let her tongue go inside, as far as it could moaning into Lexa's center from the taste. Lexa's hips jerked forward, her hand pushed Clarke's head down a little more, and she let out a long moan of approval. Clarke pulled Lexa's legs over her shoulder, pulling her closer, and spread her legs a little wider, letting her tongue go deeper.

"Oh fucking god Clarke." Lexa moaned out as one of the blonde's hands went to her clit, drawing circles on it, as her own hand when to roll a stiff nipple.

Two fingers went to Lexa's entrance as Clarke removed her tongue and brought it to her clit, flicking the hardened little bud. She gently sucked on it as two digits slipped inside.

Lexa choked on a moan as her hand gripped the bedsheets, her other hand pushed Clarke's head down more, as she started to grinded into Clarke's face and fingers. Clarke chuckled at the response causing Lexa's hips to falter and flutter around Clarke's fingers from the vibrations.

The blonde had started a fast steady pace of curling forward hitting the spongey on Lexa's front wall as she sucked harder on her swollen clit and pinched the hardened nipple with each curl. With a few more thrusts Lexa came spasming uncontrollably around Clarke's fingers.

Either of the two girls realized that just then Callie walked in to find Lexa on her back, one hand tightly in Clarke's hair pushing the blonde down, the other hand tightly gripping the sheets, eyes shut tight, eyebrows scrunched together, mouth hanging open, face turned into the pillow, back arched high, her legs hanging over Clarke's shoulders twitching, as she let out an almost inaudible moan, while Clarke's head was between Lexa's thighs, moaning into her center, with one hand rolling a hardened nipple and the other at Lexa's center.

"Yeah," Callie scoffed shutting the door and walking over to her suitcase while scaring the two girls, "studying my fucking ass."

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