So here it is, the chapter you've all been waiting for. I hope you enjoy it, it's almost as long as the first three chapters count together. :-) Have fun reading!

Chapter 4: A night they won't forget

Tris

I step out of my panties and leave them lying on the floor.

"Look at me," Tobias says and I rise my eyes to his. They appear to be darker than usual and full of lust. "Turn around."

My heart pounds heavily as I do what I'm told. I wasn't entirely convinced I'd really like this, but even though we've only started, I can't help but finding demanding Tobias extremely sexy.

I can feel his presence behind me, although he isn't touching me yet. Only his warm breath caresses my neck, and I know he's already playing with me. I sigh and try to lean back against him, but he keeps the distance between us.

"I'm the one to decide when you're allowed to touch me tonight," he whispers and bites my earlobe.

He places his hands on either side of my waist and strokes down along my sides and legs. When he moves them up again, they are under my skirt, traveling up the insides of my thighs to my naked sex. I moan as he inserts a finger into me without hesitation, then adds a second one while his other hand grabs my behind.

"I'm pleased you seem to enjoy yourself, I can feel it on my fingers," Tobias says as he continues teasing me, his moans mixing with mine until he takes his hand away.

"Can you feel how hard you already make me?" he asks as he pulls my backside flush against his body and his erection presses against my bottom. "Answer me."

"I do," I breathe as he begins to rub himself against me while massaging my breasts under my top. I gasp as he pinches my nipples harder than usual, sending a pain through me that turns into pleasure somewhere on the way to my brain.

"Too much?" he mumbles.

"Hurt a little, but in a good way. More."

I don't miss his little sigh of relief before he pinches me again and I moan. He keeps his hands on my breasts, alternating the intensity of his touch between hard and soft.

"I think there's too much fabric between us," he eventually decides and swiftly takes off my top and bra. "Now take off my shirt and then lie down on the bed."

I turn around and enjoy the feeling of his abs under my palms as I run them up his body, pushing his shirt up. I take a moment to admire his shape before I walk over to the bed and sit on the edge, his gaze on me.

"I told you to lie down," he reminds me.

I move to the center of our bed, anticipating what's to come. I watch him retrieve the box I gave him and place it on the nightstand. Then he kneels over my hips with one leg on each side of me.

"Raise your hands above your head."

I do what I'm told, and I can't believe how much he turns me on right now. I didn't know how seductive his dominant side would be, and how much I would want him to tie me up. Maybe we're both surprised.

Tobias holds my wrists to the mattress with one hand while bowing down to kiss along my neck and over my ravens to my breasts. He licks around my nipple and then bites it harder than I'm used to. Again, the pain of it changes to lust, and my hips rise in search of friction.

But instead of giving in to my wish, Tobias sits up a little more, staying out of my reach. I can tell he loves teasing me like this from his heavy breaths while he treats both my breasts with an equal amount of bites and kisses.

"Tobias, please," I moan, needing more of him.

"You know I'll tie your hands now, don't you?"

His words make me shiver.

"I know."

"So you want me to?"

I nod.

"Tell me that you want it."

"I want you to tie my hands," I whisper and his eyes beam at hearing these words from me.

"Naughty, Miss Prior," he teases mischievously.

He takes the scarf out of the box and slings it around my wrists until I can't move them apart anymore, then ties the loose ends to the headboard. Leaning back, he watches his work before his eyes skip to my face and then travel down over my body.

"You're so beautiful, and you can't shy away from my gaze tonight," he smiles, obviously content with the sight of me tied to the bed.

Tobias

I take my time admiring her wonderful body. Although she isn't self-conscious about it anymore, she usually tries to turn away when I'm staring too long. But tonight she can't. Tonight I'm in control.

Judging by the wetness between her thighs, her heavy moans and her rapid breathing, she enjoys this fantasy as much as I do.

"Well, what am I going to do to you next? I think I'll have to blindfold you, so you won't be able to watch me anymore."

I reach for the blindfold and gently cover Tris' eyes with it, taking away her sight.

I'm in awe of the trust she's blessing me with as I look at her, naked except for her skirt and unable to move away from me, completely at my mercy. This is what I wanted, and the reality is much better than I could ever have imagined in my daydreams.

I'm so hard already, but I want to enjoy this some time longer. I get up from the bed and slowly open my pants. I know she can hear the sound of the zipper in the silence, like I intend her to. For the time being, I keep on my underwear.

I take the white feather and move it over my arm once, to know how it feels. It's a soft, tickling sensation.

I start at Tris' neck and move it softly over her chest and abdomen, causing little goosebumps to appear on her skin. I push her legs apart enough for me to kneel in between and caress her inner thighs with the feather. Tris moans loudly when I stroke over her sex gently for the first time, just a whisper of a touch. I continue until she's moaning and writhing underneath me, desperate for me to touch her for real.

"Tell me what you want," I say, my own voice thick with need.

"I want your hands on me," she sighs, "please."

"Interesting, since it was you who gave me this feather," I tease, moving it along her inner thighs again. It's so arousing to see her like this, her body reacting to every little touch, craving for more. She's so tempting.

I throw away the feather, wanting to fulfill her wish, wanting to make her lose contact to the world. I know it won't take long now with the height she's already in.

Tris

Finally, Tobias' hands are on me, roaming over my thighs until they stop on my knees. He pushes my legs further apart, opening me to him and I shudder to think that he's probably shamelessly looking at me right now.

The next thing I feel is his mouth on me and I gasp at the sudden contact. He licks and sucks on my sensitive spot, and I pull at my restraints in an effort to grab his head that's buried between my legs, but it's useless. He tied me up pretty well.

The sensation of not being able to control anything, to have him decide what to do with me, makes my lust build fast now under the touch of his lips. He won't even let me move my hips as he pins me down to the mattress with one arm and then pushes two fingers into me, adding another source of pleasure. I hear him groan against me as my own sounds grow louder.

"Please don't stop, Tobias, I'm so close. This is so good," I manage to get out before I fall over the cliff and into nothingness.

He keeps his mouth on me until I've landed, then trails kisses up my body as he lies down on me. His lips on mine are a relief as he kisses me hungrily, although I'm still out of breath.

"Wow," I whisper, "that was amazing."

"That was unmistakable," he smiles as he covers my mouth again with his. "And we're not done yet."

How can I already be feeling my lust begin to build again just from hearing him say that?

"So what are you going to do with me now?" I ask innocently.

Tobias brings his mouth close to my ear and says calmly, "I'm going to take off my briefs now. I can't wait to be inside you and feel your heat around me. And I'm so turned on by you right now that I don't intend to go slow. But that's how you'd like it now anyway."

It's unbelievable what he can do to me with just his words... I swallow.

"Yes," is all I can breathe out.

"Say please."

He moves away from me, probably to strip off his briefs.

"Yes, please."

"Please what?"

Now he's on top of me again, his weight pushing me down into the mattress and the tip of his erection nudging at my entrance. He knows he's pushing me out of my comfort zone by making me say that out loud, but I'm so driven by my need for him that I'm not able to care. The role I'm in makes me bold.

"Please take me hard and fast," I whisper with the most seductive voice I can muster and add, "I'm all yours to do with as you please."

"Woah Tris, you're driving me crazy," Tobias groans as he pushes into me with one powerful thrust. He doesn't give me time to adjust to him like usual. Instead, he starts pounding into me fast, and I try to match his rhythm with my hips.

Tobias

I claim her body as I thrust into her relentlessly, her bold request echoing in my ears. Her muscles clenching around me and her heavy moans invite me to just go for it. I already made her come and I will make her come again later, so for now I follow my primal instincts to satisfy my own desire.

It doesn't take long until I feel myself pulse, and I pound into her deeply one last time while the time stops for a second or two, and fire runs through my veins as I groan out her name and release into her.

I collapse, laying all my weight on her as my muscles relax, and enjoy the warm aftershocks of my high. As soon as I've regained control over my muscles, I push myself up and lift the blindfold off Tris' eyes. She blinks a few times, but grins unmistakably satisfied. So do I.

I lean down to kiss her, gently and loving. The sex we've just had may have been rough, but that doesn't change how deeply I care for her.

"So did you enjoy your present, Tobias?" Tris whispers against my lips flirtatiously.

"Very much. And it's not just me who enjoyed it," I say lowly, then bite her bottom lip and suck on it before I move my lips along her jaw up to her ear. "Besides, don't think I'm done with you yet."

She moans and pushes her head back into the pillow, offering me more of her neck. I can't resist her unspoken request and bite my way from her ear to the hollow between her neck and collarbone. It's one of her particularly sensitive spots. I flick my tongue over it various times and then suck at her skin, turning it red as I mark it with a hickey.

Tris holds her breath until I'm done, and then she lets out a heavy sigh.

"Untie me," she says and I look up at her face to see if she's alright. She looks back at me enticingly. Good. She's still into it. So am I. I love to explore these new dynamics between us, the roles we're playing providing us with new freedom.

"Oh, I think you forgot how to speak to me tonight," I reprimand her and squeeze one of Tris' nipples between my thumb and forefinger. She gasps and her breathing hitches. It's always her breathing that gives away how turned on she really is. I've learned to read all its facets.

"Please, Tobias. Please untie my hands. I want to use them on you."

She whispers the last sentence, and it has the desired effect. I pull out of her and kneel beside her to undo the knots that kept her arms above her head. She looks at her wrists and moves her hands in circles, as if she wants to try if they're still working.

"So," she says and pushes me back slowly until I kneel on my heels while she sits up. "You say you're not done yet? Neither am I."

Her small hand wraps around me and begins stroking me up and down while her radiant eyes are glued to mine. Every few seconds or so, my gaze jumps to her slightly parted lips. They look so inviting and make my mind trail off.

"Tobias," Tris says, and my eyes find hers before she leans in to whisper something in my ear, steadying herself with her free hand on my thigh. "You know if you want me to do something with my mouth, you just have to say so."

I gasp at her suggestion. I swear she can read my mind sometimes. Maybe I'd blush if I had time for it, but instead I just whisper to her, my mouth equally close to her ear as hers is to mine, "Kiss me."

She sits back down on her heels and grins as she tightens the grip of her hand around me. Her free hand cups the side of my face and I catch it to place a kiss on her palm before she trails it down over my chest and stomach, lower, lower...

When she bows down and closes her lips around me, I can't help but groan loudly. I watch her head move up and down as she sensually spoils me with her mouth and tongue. The possibilities to observe her giving these intimate kisses to me are much better in this position than when I'm usually lying flat on the mattress. A little hesitantly, I extend my arm and put a hand on her back. She moans, the vibration of the sound perceptible right before her tongue lashes out to slowly circle my tip. And as I get harder for her, my composure turns weaker under her caress.

Tris

Tobias may be the dominant one tonight, but for a few minutes, it is me holding all the power — a sensation I always enjoy. I love the rush of adrenaline that goes hand in hand with taking control over his desire. Tonight I only get a taste of it, and I'm determined to savor it. I wonder if he feels the same way when he directs me to follow his lead.

He seems to remember our designated roles when I press my lips tighter around him.

"Tris, this is enough," he sighs, but only halfheartedly. I ignore his command, curious about what his reaction will be. He lets me go on for a few more seconds before he tries again, firmer this time, "I said enough!"

He closes his hands around my face and pulls my head up until my eyes are level with his. His gaze is intense as he scrutinizes me. It seems that the power is devolving from me upon him the longer we keep eye contact, but I won't break it. I raise my eyebrows to challenge him. If I make him the gift of power, I want to see him seize it.

Tobias cocks his head and narrows his eyes. "Did you just disobey me?"

"Only to please you," I reply smugly.

He shakes his head, as if to show his disappointment. "Tss, but you still disobeyed me."

"Are you going to punish me now?" I ask, forbidden excitement pulling at my stomach.

"I might have to."

His hands let go of my face and rest on my shoulders for a moment before trailing down my back. Tobias' fingernails scrape the skin on either side of my spine with the perfect amount of intensity. I swallow as his palms come to rest on my behind.

"You could try to apologize," he offers.

I'm not sure if a part of him is hoping that I will, but I won't. I have to admit to myself that dominant Tobias is too hot to tame him and waste any of this humming tension between us.

"No."

"So you choose to be stubborn? Alright."

I shiver as he turns me around and makes me lie on my stomach. My body is buzzing with desire for his touch, and the uncertainty of what he's going to do only heightens the anticipation. With one knee on each side of my hips, I feel Tobias hover over me as he bites the crook of my neck. My breathing accelerates with every time he sucks my skin between his teeth, and I'm having trouble holding still.

Eventually, his mouth wanders over my shoulder to my spine, and his lips and tongue leave a wet trail down to the small of my back. Then Tobias sits up and kneads my behind.

"So, your punishment involves a little spanking, unless you changed your mind and apologize for your sassy behavior."

For a few heartbeats our heavy breathing fills the entire room. I know he won't really hurt me. It's always a turn-on when he holds me strongly and grabs whatever part of me he can reach during sex, so I figure we can at least give this a try. The notion of doing something naughty and forbidden only enhances my longing for him.

"No, I won't apologize," I say, giving him permission to go on.

And he does.

He sits up on my thighs and takes his hands away from me. I hold my breath, unable to resist pressing my legs tighter together to calm the need for pressure.

And then his hand comes down on my butt — not exactly hard, but still strong enough to make me gasp — more of lust than of pain, though.

"Still no apology?"

I bite my lip as I shake my head.

Tobias smacks me two more times, sending jolts of energy through me, before he caresses the skin he just spanked.

"Someone's being naughty," he whispers.

"I think it's two of us, actually," I whisper back, not fully trusting my voice.

"You seem to like it, or you'd stop provoking me," he says, a soft chuckle playing its way into his words.

There's no need to add anything to his conclusion, as I'm sure we understand each other's hints correctly.

And then his hand strikes my bottom again, fueling the fire burning underneath my skin.

Tobias

Tris moans as my palm comes down on her cute ass, a sound so primal and raw that it makes my heart flutter with a strange mixture of pride, awe and desire.

It's striking to find out what this fantasy does to us: It provides us with freedom to explore a new side of our sexuality beyond what we've come to know so far, discovering a whole new territory.

I slap Tris' behind three more times, not in an act of violence, but one of lust and devotion. I would never hit her to cause her pain. I would compare it to grabbing her tightly, something she always encourages me to do.

But now I decide that it's enough for our first time, and I'm impatient to be inside her again. I need to be physically connected with her body the way we are with our minds. I trace her spine up to her neck with my palm and then use my fingernails for the way back down. For once, I don't even stop when I reach her ass, but follow the path between her butt cheeks, grazing over the one spot I haven't touched before as I move my fingers along, and then push a finger into her warm wet core.

And that's when I'm finally overwhelmed. I can't wait a single second longer, so I lift her up by her hips and push into her. I groan at the searing heat that surrounds me. I'll never get tired of this moment when I first sink into her.

"Tobias," Tris moans my name, and she doesn't have to say more than that. I circle one arm around her to apply pressure where she needs it, and while my fingers rub her clit, I steady us with my other hand on her hip as I set a swift pace for us that gets even faster as we soar higher and higher.

It's not easy to hold back my climax, as I could come right away. But I know Tris is only a short distance away from her own, so I restrain myself just a little bit longer.

And it proves to be worth it, as we finally both hit the highest point together. I hiss her name as her hands cling to the sheets, and she pulses around me as we both relish in the purest pleasure that overcomes us simultaneously.

And then we just collapse, Tris onto the bed, and I onto her.

"Wow," she says as soon as she's calmed down a bit.

"Wow," I reply and lift my head to kiss her cheek.

A grin spreads on her face. "That was pretty hot."

"You could tell by how we're both sweating," I say lightly, grinning right back at her.

Tris

I'm not far now from falling asleep in Tobias' arms, the afterglow of our lovemaking leaving me in a deeply satisfied bliss. His arm is slung around me and his thumb draws lazy circles on my waist.

"Was it how you imagined it would be?" I ask him.

"Everything I imagined and more," he confesses and kisses the back of my head. "And for you?"

I smile. "Oh, I wouldn't exactly mind doing that again someday."

"Someday, mh?"

I snuggle closer to his chest, where I can listen to his steady heartbeat.

"Someday soon."

"Someday soon then."

He sounds exhausted, but satisfied, just the way I feel, too, and as there's nothing more to say or do, we let sleep take us in its embrace.

DISCLAIMER: I own neither the Divergent world nor the characters, they belong to Veronica Roth.