A/N: This chapter is a hard M, so consider yourself warned. I promise there's a point to it :)

Mona shoots up in bed in a cold sweat. She takes a few breaths, tries to calm down. Dazedly, she wipes the tears from her face with the back of her hand. She's been dreaming about that night again.

It was Christmas Eve at the Marins' house. Mona's parents had gone to Paris for the holiday, so she was spending the week with Hanna and her mom.

Darkness had descended, and snow swirled around outside, the wind occasionally lifting small piles into the air to patter at the windows. The moonlight sparkled on the snow in a beautiful and incandescent way.

They had decided they needed eggnog for the occasion, and now found themselves more than a little tipsy. Giggling uncontrollably, they tripped and stumbled their way to Hanna's room and collapsed on her bed.

They were midway through a loud, tone-deaf third chorus of Jingle Bells when Mona suggested a game of Truth or Dare. Hanna agreed immediately, because she always did.

They traded silly questions at first, and Mona had to call a nerdy boy in their class and pretend to ask him out as Spencer Hastings. They played a few more rounds, Mona's heart racing each time it was Hanna's turn to ask.

"Truth or dare?" Hanna asked, glass tilting dangerously in her hand.

"Dare." Mona didn't need time to consider it.

"Hmm…okay, I've got a good one!" Hanna lit up.

"Yes?" Mona asked, subtly licking her lips and hoping her hairspray was holding up.

Hanna leaned forward with a mischievous look on her face. "You have to…call Noel Kahn and offer him a blowjob."

"Why do all the dares have to be prank calls?" Mona whined. She had hoped that Drunk Hanna would be a little more…creative.

"Well, that's all I can think of! If you have a better one, why don't you go?" Hanna huffed.

"Okay. Truth or dare?" Mona asked, nervously biting her lip.

"Truth." Hanna said decisively.

Mona silently worked up her courage. "Have you ever kissed a girl?" she asked, studying Hanna's face for the smallest reaction.

"No." Hanna said, smiling goofily. "I came close this one time that Ali wanted to play Spin-The-Bottle when it was just us, Aria, Spencer, and Emily at her house, but Emily freaked out, so we didn't end up playing."

This was news to Mona. "Did you want to?" she asked without thinking, then mentally slapped herself. She didn't want to seem too eager.

"It's not your turn to ask." Hanna said coyly. She fixed Mona with an appraising look. "Have you?"

Mona's heart raced. What should she say? "No. But…I've wanted to, sometimes. Just to see what it's like." She added quickly.

Hanna was quiet for a minute. "Me, too," she said. "I bet it's really different with a girl."

"Yeah…" Mona didn't know what to say, but she was feeling self-conscious. "Truth or dare?" she asked, a little solemnly.

"Dare," said Hanna, swirling the creamy liquid around in the glass.

Mona pretended to think for a moment, then she just came out with it. "Kiss me," she said, twirling a strand of her long, dark hair around her finger.

Hanna looked taken aback for a moment, and Mona began to panic that she had freaked her out.

"What, are you afraid?" she challenged, an accusation she knew Hanna would never let pass.

"No!" Hanna huffed, sticking her chin up defiantly.

"Then prove it." Mona retorted, crossing her arms.

Hanna hesitated, considering, and then she set her glass on the bedside table, nearly spilling it again. Leaning forward, she rested one elbow on a fluffy pillow, threading her fingers through Mona's hair. Mona's heart stopped beating as Hanna's perfect lips touched hers, at the feeling of Hanna's cherry-red lip gloss mixing with hers. She tasted distinctly of eggnog and peppermint. One dangly earring draped across Mona's cheek, and the metal felt cool against her skin. Vaguely, she recognized Snow Patrol's Chasing Cars beginning to play on Hanna's IPod.

Please let this be real, she wished desperately on the stars twinkling outside Hanna's window. The moon and the snow falling outside Hanna's giant window bathed the room in soft, white light.

Hanna deepened the kiss, wrapping her thighs around Mona's waist. Mona observed that Hanna's hands were trembling slightly- Hanna had always been a lightweight drinker, as much as she liked to pretend otherwise. Then she was cupping Mona's face with both hands and kissing her, and the strap on her pink Victoria's Secret top had slipped off her shoulder, and her breasts were pressed up against Mona's and Hanna wasn't wearing a bra and Mona forgot how to breathe.

Trembling, Mona flipped them over so that she was straddling Hanna. She trailed kisses down Hanna's neck as Hanna moaned and pulled her closer.

She slipped one hand under Hanna's tank top, soaking up the heat that was radiating from Hanna's body. Slowly, she took Hanna's mouth in hers again as she cupped her breast. Hanna gasped into her mouth as she gently rubbed the blonde's nipple, feeling her own panties become damp.

She pushed Hanna's shirt up, exposing both breasts to the cool air. Mona reverently ran her hands over Hanna's flat stomach, tracing circles up to her breasts. Then she leaned down and kissed her nipple, gently taking it in her mouth and tracing it with her tongue.

"Fuck!" Hanna moaned, fingers tangled in Mona's curls.

Closing her eyes, Mona decided to carve every look, every sound, and every feeling of this night into her memory.

Mona kissed her way down Hanna's stomach to her waistband. She slipped her fingers underneath and in between Hanna's legs, where, fuck, she was only wearing a thong and she was soaking wet.

This was better than every wet dream she'd ever had. Better than the time she masturbated for the first time after mentally fucking Britney Spears. How many times had she told herself it was never going to happen? She felt a hot throbbing between her own legs as she slid off Hanna's pajama pants and tiny thong, which was red and white striped like a candy cane.

Hanna laid her head back on her pillow, breathing heavily, as Mona spread the girl's legs apart, slowly kissing the inside of her thighs.

"Mona, you don't have to," she panted, a self-sacrificing, yet unconvincing look on her face.

Mona smiled mischievously as she looked up. "But I want to."

With that, she touched her lips softly to Hanna's clit, tongue circling it hesitantly. She drew it into her mouth, and Hanna bucked her hips upward with a moan. She trailed kisses downward to Hanna's vagina, where she touched her tongue to Hanna's entrance, savoring the taste of Hanna. She began to lap at Hanna's center with steady strokes, burying her face between Hanna's legs. Hanna's fingers were so tight in Mona's hair that it should have been painful, but Mona didn't even notice.

Lifting her head up, she smirked as Hanna gasped at the loss of contact. Mona reached up for another kiss, Hanna making a noise in the back of her throat as she tasted herself on Mona's lips.

"Mona…" Hanna breathed, hips bucking upward.

"Tell me what you want," Mona whispered in her ear, intertwining the fingers of her left hand with Hanna's.

"You already know," Hanna hissed, guiding Mona's hand to her entrance. Heart beating wildly, Mona slowly pushed one manicured finger inside her best friend. The blonde was so hot and slippery that Mona felt dizzy.

"God," Hanna moaned, "Please. More."

Mona pushed another finger inside. Slowly, she began thrusting. Hanna's eyes rolled back in her head. "Fuck, Mona…that feels…" she trailed off, biting her lip. "Fuck."

Hanna dug her nails into Mona's shoulder as she added a third finger, and then a fourth. She gave a final thrust, and Hanna screamed her name as she came all over her clean, pink bed sheets.

Panting, Mona rolled over and laid beside Hanna. For a few minutes, neither of them moved. Hanna looked perplexed, but completely blissed out.

"Wow." Hanna breathed.

Mona opened her mouth to agree, but the lingering taste of Hanna on her lips was so overwhelming that she just nodded dazedly.

Her eyelids started to feel heavy, so she grasped Hanna's hand and pulled her close. Hanna snuggled into her arms and laid her head on Mona's shoulder.

She really loves me, she thought, Hanna's warm, steady breathing tickling her neck as she drifted into a peaceful sleep.