I had an idea for a little continuation of this former one-shot, so I decided to go with it. No word on how far I'll take this one but, rest assured, there won't be much plot to it, regardless. Cold showers recommended.

II. All To Myself

"Let me get this straight," Sirius said when James had finished, and James steeled himself for what was likely to be a good, theatrical scolding, as was only befitting of Sirius Black.

Perhaps calling him on their two-way mirrors wasn't the best course of action, James thought while Sirius paused for dramatic effect. But he hadn't been able to do anything else. He'd tried going to dinner, but had to fake a sudden headache and excuse himself when Professor McGonagall clearly noticed how often his gaze strayed to the Gryffindor table. Maybe he was just being paranoid, but he could hardly keep the butterflies in his stomach from upsetting his meal, anyway.

Because It was impossible not to notice the way Lily Evans flicked her hair over her shoulder, and all James could think about was how his hands had been in that hair, how his mouth had been on that shoulder…

Pumpkin juice wasn't cutting it. James had to head back to his office for a firewhiskey and an impromptu call to his best mate, who was still talking to him in clipped tones.

"So this Evans bird," Sirius said, "she comes to your office to talk to you about some essay. She reckons you underestimated the quality. She doesn't want this paltry 'A' you've given her, so instead you give her the D."

"Do you have to put it like that?" James grumbled into his glass, and took another drink.

"Oh, excuse me," Sirius said with a light laugh. "I didn't realize you would object to such crass language. For a moment there I forgot you had any sense of propriety at all, seeing as how you fucked a student."

James wished he'd quit spelling it out. "I know."

"Do you know?" Sirius lifted an eyebrow. "Because I — master of debauchery — feel the need to impress upon you the magnitude of the situation that you've fucked yourself into."

"I know."

"Do you know what Remus would say if he heard about this?" Sirius went on as if James hadn't said anything. Which, to Sirius' mind, he really hadn't. "'You're an idiot.' That's what he would say. Perhaps I should owl him —"

"No!" James balked. He shook the mirror as if it would shake that notion from Sirius' conscience. "No. Don't tell Remus."

"Why? Too much common sense for your cock to take?" Sirius scoffed. "She can't be that fit, James."

She was, James thought, but that wasn't the only reason he'd taken her on top of his desk, and it wasn't the only reason he'd asked her to come see him again later. She was… Well, he didn't really know where his mind was headed when he thought about her, but he was always thinking about her. He couldn't get her out of his head and, if he were honest with himself, he didn't really want to.

"You've seen her before," James said to avoid telling Sirius what was going on in his head. "She was only a few years behind us when we were students."

"By my calculations, she would've been twelve when we were seventeen," Sirius pointed out. "Excuse me if I wasn't checking out second-years when I hit adulthood."

"Fair enough," James allowed, and then continued before he could think twice about it. Sirius was his best mate, after all; it felt wrong not to tell him the truth. "But she's coming over at eight, so you can see her then."

Sirius glared at him. "What the hell do you mean, she's coming over?"

"I — er, well…" James managed to look sheepish, an act Sirius might have bought if he didn't know him so well. But as far as Sirius was concerned, there was nothing James wanted more than to fuck this girl every chance he got. "I might've asked her over."

"James, you tosspot."

"I can't help it," James all but whined.

"Have you tried?"

"You know I have," James reminded him. "I've been trying for months."

Sirius made an incredulous noise in the back of his throat. Truth be told, he was enjoying taking the mickey out of his best friend than he was actually chastising him, but he still had to hit James with a bit of common sense. "Your lack of willpower is utterly tragic."

James dropped his forehead on his desk so that Sirius couldn't see him anymore. "I don't know why I tell you anything."

"Prongs, quit being ridiculous and speak into the mirror."

Resigned to his very deserved scolding, James sat back up and frowned into the mirror. "Fine."

"Now that you're done feeling sorry for yourself — or you're done being dramatic about it, whatever, I don't care." Sirius shook his head. "Look, mate, you know I think you're being an idiot. This is quite possibly the worst idea you've ever had, and that includes that time in third year when you Charmed wings onto that niffler."

"I tell that story to my classes sometimes." James' mind wandered from nifflers to the way Lily had licked his neck earlier. "Evans loves that story."

"Oh, for Merlin's sake, man, pull yourself together," Sirius snapped, clearly disgusted. "Honestly. You're putty in this girl's hands, and it's embarrassing. I know you're right pleased with yourself right now and everything, but I am embarrassed for you."

James was saved the trouble of making some witty retort by a knock at his door.

"Oh, shit —" he checked his watch — "look at that, eight already. And just for your cheek, Padfoot old friend, I'm not going to let you meet her, after all."

"Sure, that's why. It's not because you're afraid she'll take one look at this masterpiece —" Sirius gestured to his own face — "and forget all about you."

James grinned. "I'll call you later."

"Yeah, I'll get the guest room ready for when you're inevitably sacked." Sirius flipped him off and cut off the connection.

"'Right," James muttered to himself, and went to answer the knock.

"Keep me waiting, why don't you?" Lily said as soon as he opened the door. She sidestepped him into the room while he locked them inside. "I was waiting for McGonagall or someone to round the corner and ask me what the devil I thought I was doing, hanging 'round outside a teacher's quarters after hours."

"It's only eight," James pointed out, "and you were out there for five seconds."

Lily waved a dismissive hand at him. "Oh, what do you know?"

"Hmmm…" James pressed his lips together while he took her in. The top two buttons of her blouse were undone again, revealing that delicious collarbone, and her trousers were a little too long for her. Her hair looked darker, damp from a shower, and James didn't bother repressing thoughts about her there — slick, wet, soaking… "I know that I'd like to get my head between your legs, how's that?"

Lily's insides squirmed pleasantly. "Oh-ho, I thought I came here to talk."

"Oh, damn. Right." James grinned at her and cocked his head to the right. "C'mon, my room's through there."

Lily followed him behind his desk — oh, what a desk, she thought as she recalled how James had rammed her against it mere hours before — and through a small back corridor that ended in an open door, beyond which was a small bedroom.

"Nice digs," she said as she picked her way over a pair of boots and a pile of books. "What, you don't get house-elf service?"

"I'm notoriously untidy."

"I'll remember that." Lily sat on the edge of his bed and looked at him expectantly. "So. What about us did you want to talk about?"

She wasn't one to beat around the bush, James observed, but he'd known that about her for awhile now. When she had a point to make, she wanted it done as quickly and concisely as possible so that she could move on to the next one. That was the way all of her essays read, anyway, so James wasn't surprised that she adopted the same tactics in her personal life as well.

"Right, well, a couple of things…" James ran a hand through his hair, unaware of how such a simple act made Lily's toes curl. "Are you on anything — like a potion, maybe Muggle contraception?"

"Oh, yeah, I take a potion," Lily assures him. "Haven't had to use it for sex before, but it helps with the menstrual cramps."

"That's what I've heard," James said, then, when Lily raised a questioning brow, added, "That's not even the most private thing I've overheard my students discussing, trust me."

Lily inclined her head. "Figures. Hey, are you going to stand there all night, or are you going to come over here?"

"Ah…" James offered her a cheeky, close-mouthed smile. "Well, Evans, I'm afraid if I come anywhere near you, I'm going to forget everything I wanted to talk about in favor of running my tongue all over you."

"I'll slap your hands away until we're done talking," Lily said, and patted the mattress next to her. "Cross my heart."

Deciding that he could neither resist her nor refuse her anything, James thought it best not to pretend otherwise. He knew that everything Sirius had said was right, that it was a bad idea — definitely worse than giving that niffler the ability to fly — but when Lily walked into his office, he'd thrown the rest of it out the window. He was being stupider than he'd ever been in his life, but one look at her and suddenly it all just made sense.

So James went to her, and allowed himself to run a hand through her still-damp hair. He leaned in to run his nose along her neck, breathing her in; she smelled like soap and he wanted to make her smell like him. He wanted to be all over her.

"Your resolve crumbles quickly, doesn't it, Professor?" Lily observed on a laugh that ended on a quiet moan when he bit her earlobe.

"Try calling me 'Professor' one more time, Miss Evans, and I'll be inside you before you can get the word out. Now tell me," James went on conversationally while he put his hands on her thighs, "I know you never shagged anyone before today, but tell me what else."

Lily traced the tendons in the back of his hand. "Jealous, are you?"

"Very," James said seriously. No point in lying to her now. "And I'd just like to know."

"Alright," she agreed. "Well, the furthest I'd gone was when Garrett went down on me awhile back —"

"Ah, I knew I didn't like him for a reason." Stupid, sodding Aubrey.

"You know, normally I'd think you were joking, but he told me that you'd been giving him a hard time," Lily said thoughtfully. "I wondered why, because you'd always seemed to like him well enough, and then suddenly you were getting short with him."

Guilt twinged in James' gut. "I didn't mean to. He just seemed more annoying when he was trying to feel you up during my class, which, by the way, is almost as inappropriate as what we're doing now."

"Oh, he was never trying to feel me up during class," Lily argued. "He was only touching my legs."

James rubbed his palms against her thighs. "So'm I, and I can assure you, Evans, my intention is to feel you up."

He shot her a grin. "Aren't you supposed to be slapping my hands away right about now?"

"Probably," Lily admitted, "but I'd rather not."

"Good. I'll romance you later," James promised, and undid the snap of her trousers.

Taken aback by his hand suddenly on her knickers, Lily's breath caught in her throat and released on another moan when his mouth went to her neck. His free hand curled around the back of her knee and jerked her upwards so that she was straddling him. She rolled her hips against his hand, and he pushed past the material to rub her.

"I used to think about this while I watched you in my class," James said while he licked her throat. His fingers massaged her, teasing her while they lit her skin on fire but didn't go inside just yet. "I'd watch you cross your legs and all I wanted to do was get between them. I wanted to see the look on your face when I did this —" he slipped a finger inside of her — "so I could imagine what you'd look like when I got my cock in you."

Lily's grip on his shoulder tightened, and her other hand dragged down his chest to his belt. "You can see that look anytime you want," she offered on a string of ragged breaths.

"Good." His finger curled inside of her, and he reveled in the sounds she made because of it. "I want you, and I don't want you to want anybody else."

James' mouth left her neck to trail down the little exposed skin of her chest. "No more Aubreys. No more Cootes. No more McAllisters. You're the only one on my mind. I want to be the only one on yours."

A thrill shot up Lily's spine while James shot more of them into her body. She'd always been impatient with jealousy before — she'd heard it from her best friend and most of her boyfriends, and it was always so useless and suffocating. But the way James wanted her excited her, it made her shiver and then melt, it made her want to brand him the way he was branding her.

She dipped her head to press hot, open-mouthed kisses down his neck, and she bit the skin hard enough to bruise. She heard James' sharp intake of breath in her ear and she moaned his name into his.

James thrust his hips into hers. "Tell me you want me, Lily."

Her breath was coming out in stilted gasps that made him want to fuck her against every surface in his office. "I want you."

She broke off on a long groan when he slipped a second finger inside her, and then abruptly pulled his hand away from her entirely. He pulled her legs out from under her so that she landed flat on her back on his bed, and he all but ripped the trousers off her legs — her impossibly long, lovely legs that he wanted wrapped around his head while he buried his tongue inside of her.

"Tell me none of them ever made you feel like this," he murmured into the hollow at the base of her throat. He popped the rest of the buttons on her blouse and left it to wrinkle beneath her. "Tell me that they didn't get you wet like I do."

"I thought about you when I was with them." Lily helped James fumble with the buttons on his shirt to remove it. "Every time, my mind wandered and it always ended up on you. I pretended that their hands were your hands, that it was your mouth. I had to keep myself from screaming out your name."

"Don't hold it in anymore." James shrugged off his shirt and tossed it aside. He started at her neck and trailed kisses down her body. "I need to hear you say my name. I want to remember the way you say it, when I'm alone, so I can think of you, so I can remember what you do to me."

"Yes, sir, Professor —"

James tore her knickers in half and put his mouth on her.

Lily's hands flew to her hair and her fingers twisted in it. Her back arched when James flicked his tongue, but he held her hips in place so she could do little more than squirm beneath his touch.

"Merlin, you taste good," James groaned while his tongue explored her. He glanced up at her to find that she couldn't keep her eyes opened or closed, and so she was blinking rapidly while her chest hitched. "You're so fucking sexy, Evans."

She couldn't respond. She couldn't do anything but clutch at her hair, the sheets, bite her lip and then release it when James moved his mouth just right and some strangled noise she didn't even know she could make ripped from her throat. When she managed to say anything, she could only gasp out his name.

That alone seemed to spur him on, because he devoured her and she came like she was never going to stop — and if James kept touching her like he was, she might not.

Suddenly, he was crawling up over her body, his mouth leaving sticky kisses over her damp skin before it found hers. Lily could taste herself on his tongue, on his breathe as he groaned into her mouth. She thrust her hips into his and called him Professor again, and he caught her around the waist and pushed inside of her.

"I did tell you, Miss Evans, that I'd get inside you if you called me that again," he said, his voice as rough as hers when she sighed. He moved slow but deep. "You wanted me to take you, didn't you? You want me to fuck you like this. Tell me."

"Yes." Lily's fingernails dug into his shoulders while his words shot electricity into every corner of her body, the body she wanted to get all over his. "I want you, I want you to — oh, God — to fuck me, any way you want. I'm yours, all yours."

James hitched one of her legs around his hips so he could go deeper, feel more of her. He slid his chest over hers, attacked her lips with his, bit her jaw, inhaled her sweat-tinged skin that smelled like her and him, like her soap and his aftershave.

"God —" Lily nearly sobbed with ecstasy when James went harder and kissed her neck — "you drive me mad."

"That makes two of us," James assured her in the panting breaths she reduced his voice to. He hit that spot that made her cry out again and he thought he could finish himself just by listening to her. "Fuck, Evans, you're so tight —"

He moved his mouth back to hers to swallow her moans while he made her come. It drove him wild to hear her unravel for him, but he wanted to feel it, too, wanted her breath shaking in his mouth while he drove into her so hard in just the right way that it made her putty in his bed.

When their breathing had settled some and their kiss turned into a slow, steady one, James rolled off her, keeping their lips connected because he didn't want to stop. His hand stroked down her side to settle on her hip, where he traced circles with his thumb. Lily shivered beneath his touch and opened her mouth wider for him, her sigh traveling down his throat to settle somewhere in his gut.

"You're exquisite," James murmured when she nipped at his bottom lip, "have I told you that?"

"No, you were rather busy demanding that I talk dirty to you," Lily said, but there was no hint of irritation in her tone. Rather, she shimmied against him, moving closer as she stroked her fingertips across his ribcage.

"Mmm, s'pose I was…" James started kissing her neck again — her long, elegant neck, a smooth expanse of white that James wanted nothing more than to mark with his teeth. Intending to do just that, he sucked at the skin between her throat and collarbone. "Thinking about it gets me hard all over again."

A small but distinct sigh sounded in Lily's throat while his teeth and tongue discolored her sensitive flesh. "I'll keep that in mind. I like telling you how much I want you. It makes your pupils dilate."

"I don't doubt it." He smirked. "Is that some sort of power trip for you, then, Evans?"

"Obviously."

James chuckled but didn't stop kissing her. God, but she was delicious. The breath he exhaled from his nose tickled her as he quietly said, "I don't want you to go. I think I'll make you stay."

"Would that I could." Lily stretched to give him better access to the area she knew would be well bruised. She toyed with the idea of keeping a couple of his bite marks on her until they faded naturally. "Unfortunately, if my mates didn't give me the third degree when I got back in the morning, I'm still paranoid that I'll bump into a more ethical teacher than you who will make me explain my whereabouts."

"Tell them you had detention with me." James pulled away from her neck to inspect his handiwork. Not bad, he decided as he examined a couple of small purple marks, one of which resembled a misshapen heart. He traced that one as he continued, "You can tell them about what a very naughty Head Girl you'd been, and so I was forced to punish you."

"Ooh, don't you start up again," Lily warned, but the way she was dragging her foot up his leg told a different story. "Next time, perhaps, but if we have another go now I'll definitely be walking back past curfew."

James dropped a chaste kiss to the heart-shaped mark. "Alright, alright," he grumbled, and rolled off her. "Leave me alone to my cold, empty bed, then."

Lily laughed as she pushed herself up. "You can be quite the tosser, you know that?"

"Well if you'd just stay, then I certainly wouldn't have to be."

"Oh! Ha!" Lily swatted him with her shirt, the arm of which he grabbed and used as leverage to yank her back towards him. She paused, just a breath away, and said with a mischievous little smile, "Reckon you're going to get me in a lot of trouble, aren't you, sir?"

"Count on it," James whispered back with a wolfish grin of his own, and took her lips once more.