It was late but Nymphadora couldn't sleep. Tonight was the second in Remus' moon cycle. He was a good deal calmer than on the first night but he still shifted fitfully in his sleep. Lying there for what felt like hours she glanced at the clock to find only twenty minutes had passed.

This is absurd. Tonks jumped out of bed. Reading can sometimes make me drowsy, she reasoned. So she crept quietly out of her room and down a shadowy flight of stairs to the Black family library. Opening the door she saw the golden light of the fireplace, a warm welcome. But why was it lit?

She found Snape reclining contentedly at the side of the couch an open book in his lap. Despite the late hour he was still fully clothed in his usual black robes. After what she had just witnessed the night before Tonks didn't think she could sit here alone with him. She was slipping back through the door when Snape, without looking up from his book, called her back.

"There is ample room Dora. Come in, the Black library has a rather fine selection."

Reluctantly she reentered with the sole intent of finding a book to take elsewhere to read; still unsure she could trust herself alone with him. She had barely reached the shelves when Snape spoke again.

"What is it that brings you here at this hour?"

Turning she found him with his eyes still on the pages of his book. Sighing, Tonks went to the couch without a book and sat beside him. "I couldn't sleep."

He looked up and into her eyes. Snape noticed that her hair was once again purple, the way he liked it and though he knew she wasn't wearing it for him it still gave him great pleasure to know she wasn't wearing It for Lupin either.

"I surmised as much, but what is your trouble?" he seemed honestly concerned.

Tonks lifted her feet to the couch and hugged her knees. Snape noticed how her already alarmingly short nightdress crept even higher.

"I guess I'm just worried about Order business. Death Eaters targeting me and all that."

He raised an eyebrow. It was perfectly clear he didn't believe her, even before he asked, "Trouble with the werewolf?"

"No." she flinched at how aggressive her voice had become.

Snape scowled at her. "I'm sure you're anxious for your lover to attend to your desires once more."

He seemed…jealous? Tonks smiled sadly. "He's not real in tune with my desires."

Snape's eyes flicked back to hers. For an immeasurable moment she thought she saw hope flash in them, but it was gone before she could be sure. He seemed to be choosing his words carefully. "Is he a selfish lover?"

"No!" She hadn't meant to make him sound like a monster. "No, he's just not very adventurous."

Snape's eyebrow climbed again. "And you are?"

She stayed silent. He leaned close, his dark hair falling around his face. So close. She would have loved to run her fingers through it.

"Tell me," his voice was pure silk. So hard to resist as he asked, "what is something you desire, something he won't try?" She turned away from his gaze. There was something in his eyes, behind the profound darkness. Passion.

She felt compelled to answer, "I don't suppose it counts as all that adventurous but I really do miss oral."

Looking back to him she found the same filthy smile he had worn yesterday and when he spoke his voice seemed deeper, richer. "Fellatio or cunnilingus?"

Tonks was feeling bolder now, "both." She gazed into his eyes without fear. "He won't even let me near him that way. Says it's disgusting. I don't think he's ever tried it."

Snape sat up straighter, looking away and spoke more to himself than to her, "Foolish man. That's ridiculous."

Tonks was grinning now. "So you like it?"

He looked offended as he snapped, "of course." Then the filthy smile returned, "But I enjoy giving just as much."

Her mind was having difficulty accepting what he was suggesting but her body seemed to understand perfectly. Her breasts ached to be touched and the wet between her legs which had been increasing since she found him here tonight had suddenly grown shocking. She knew he could tell but she still wasn't prepared for what he proposed.

"Would you be horribly opposed to me catering to those desires?"

Of course I'm opposed! That was a terrible thing to suggest. I'm with Remus! She wanted to tell him, that she would never, could never cheat on the man she loved, but all that came out was an anguished moan.

"I do not find that to be a sufficient answer." His sternness was false, she knew, and it only served to fuel her desire. He leaned closer and his lips brushed her ear, she could feel his hot breath on her neck when he whispered, "Do you want me to fuck you with my tongue? Lap at your cream, lick your most intimate parts till I make you come, screaming my name?" her breath quickened. "Do you?" he pulled her hair.

No, no, no. "Yes." She breathed weakly.

He slid from her side, swishing his robes back. He dropped to the floor before her, never braking eye contact until he pushed her knees apart. It was difficult for him to hide his surprise. She was wearing nothing under her nightdress. And her hair was purple just as he had hoped. He looked back to her face.

"Do you often walk about Grimmauld Place without your knickers?" Her answer was so casual it made him shiver.

"On occasion." Snape knew now that whenever he saw her he would wonder.

He returned his face down below; placing kisses and nips along her thighs while she whimpered. Glancing up he saw her plucking at her nipples as they stood out though the thin fabric she wore. He went torturously slow until she could no longer take it. Grabbing hold of his head she thrust it just where she wanted it.

Nymphadora twined her fingers in his soft hair as Severus buried his nose in her curls and licked up along her folds. Holding her open with his fingers he slipped his tongue inside. She bucked up to meet him moaning loudly. He wiggled his tongue inside her and slid it slowly along the edges of her cunt until he reached her clit. Encircling it with his lips he alternated licking and sucking, fingers replacing his tongue curved inside her wet pussy. Her cries were getting louder. She was beyond control as she began to thrash and arch up into him.

Snape wanted her to call out his name. Using Legillamancy he shouted into her mind. Say my name! She was either too weak to fight him or simply happy to oblige. He felt her inner walls clamp down around his fingers as she screamed, "Severus!"

He stayed inside her as she came back down then pulled gently out. Rising from the floor he sat beside her fully expecting her to come to her senses any minute and run back to Remus. What he did not expect was for her to get on her knees in front of him as she now did.

"You don't have to…" he started but she cut him off seemingly excited.

"I want to. It's half the fun."

She began to stroke him though his trousers. He leaned back into the couch cushions and focused on her touch. Looking down he found her unbuttoning his pants and sliding them down his hips. Licking her lips as she eyed his length she began stroking him. His eyes closed at the feel of her soft hands encircling him but he forced them open again. He wanted to watch her please him.

Dipping her head very low he felt her smooth wet tongue glide along his balls and up his shaft till she reached the head. Just as she had with the ice cream, he recalled and shivered. She continued kissing, nibbling and licking along his length until he thought he could almost come, then she backed off. Stroking him again lightly until he relaxed a bit, she then took him in her mouth.

Sliding down on him farther each time, skillfully flicking his head with the tip of her silken tongue. When she could feel his pleasure rise near the breaking point she cupped his balls as she had seen him do and slid the whole of him down her throat. Groaning uncontrollably he came hard, bucking up to meet her as he spilled into her throat. She swallowed easily then slid off him.

Dropping to the floor she just sat there staring into the fireplace. Snape re-clothed himself but remained seated watching her. He knew this would happen. She realized what she had just done and with whom. He could see the regret in those beautiful crystal blue eyes. She closed them tightly a moment shaking her head as if fighting away bad thoughts then rose and left without glancing his way.

What had he thought? That she could want him as a lover? It was ludicrous to hope for such a thing. She would want no more of him after tonight, of that he was certain.

Why had she allowed that? She made it all the way to the loo before collapsing against the closed door. Remus is lying in bed suffering and I'm going down on a man he hates. What was it about Severus that made it feel alright?