A/N: Thanks to everyone who has read thus far! My updates should be coming a little more regularly, I'm sorry about the delay. Also, this chapter is looking to be solely smut, not much plot to be found.
Fontaine has run out of excuses to stay downstairs, but he's calmed down remarkably, and that's the important thing. He wants to show Jack what it's like, what sex should be like, before he's rough on him. But he's shaking with want, despite his inner calm. As he climbs the stairs, he requires the aid of the bannister to push himself along, his breathing shallow.
He hasn't been this excited since the first time he screwed someone topside. Margie Willis, in the backseat of his car. He was seventeen at the time, and he remembers how his hands shook on her hips, how he gasped, how he was almost certain it was a terrible time for her and he didn't really care. This time was going to be different.
He opens the door to his room and finds Jack sitting there, socks and shoes removed, but otherwise still completely dressed and still hard.
"Jack, thank you for waiting," Fontaine says, unbuttoning his suit jacket and setting it aside. Jack nodded shortly, his face red.
"Pa- I... what do I call you now?" Jack asks, scooting to the to the side so that Fontaine can remove his socks and shoes as well.
As far as Jack knew (and this was technically the truth), he was born purely from stem cell experimentation. He didn't know who his real mother or real father were, and it would stay that way so long as Fontaine had a hand in things. Their relationship was... complicated, though. Fontaine had fought his pity for the kid, but Jack was so sweet and innocent. And Jack grew up fast and Fontaine fell hard. Jack called him Papa Fontaine, or sir. It was their last means to keep up the facade that was no longer necessary.
"You can call me Frank, I guess, kid," Fontaine shrugs, "Though I think we'll still need to keep up appearances in front of everyone else."
Jack nods and ducks his head, blushing.
Fontaine smiles at him and catches his chin, tilting it up so Jack would look him in the eye "You've got to act grown up about this, Jack," Fontaine purrs, "I don't want you unwilling. If you want something of me, I want you to be able to look me in the eye and tell me what it is."
"I want you to kiss me," Jack grins shyly, and Fontaine complies, touching his lips to Jack's slowly, sweetly, hands gently cupping the back of Jack's head, carding through his hair. A moment later, they part for air, and Jack looks amazed.
"Undress me?" Jack whispers and Fontaine smiles down at him, kissing him again and guiding him to lay down on the mattress. He unbuttons Jack's shirt and pants, slowly removing both while only parting the kiss when it was absolutely necessary.
At last, he removes Jack's underwear and leans back, looking at Jack's body appreciatively. He's a genetic marvel, skin slightly browned despite their underwater dwelling, thighs and chest well muscled, shoulders broad. His chest heaves with the rapid breaths that seemed to come with his arousal, sitting against his stomach, red and leaking at the head.
"You're beautiful," Fontaine tells Jack. He'd learned long ago that this was proper ettiquite for bedding someone, to make them feel appreciated and relax. But for once, or at least the first time in Fontaine's memory, he was being completely sincere.
"You..." Jack gestures at him, "Take off your clothes, I want to see you."
Fontaine cocks an eyebrow at him.
"Please?" Jack adds, running his hands slowly, up and down his thighs, "I want to touch you. I want to see you."
Fontaine begins loosening his tie, discards it, starts on the buttons of his shirt. Slowly. Then pulls his suspenders from his shoulders, unbuttoning his pants. He slides the shirt off first, then his pants, letting both fall about his ankles. Jack gasps, which is unexpectedly gratifying, and Fontaine lies back down beside him. They are both on their sides, kissing and touching, gentle, tenative.
Fontaine's hand ghosts over Jack's ass and Jack sort of groans and something in Fontaine snaps. He rolls over on top of Jack and begins kissing him more fiercely, rolling his hips down onto the boy's, still maintaining some semblance of control. He breaks away from Jack's mouth and begins to kiss a line down from his mouth to his jaw, his neck, his collarbone, his chest, his navel (where Fontaine's tongue dips down a moment, quickening Jack's breath even more), and further, nosing his way through a tangle of brown curls, before reaching the base of Jack's throbbing cock. He licks it and gives it a gentle sqeeze, and strokes. Jack's hips come off the bed as he pushes up into the touch.
"P-please," Jack stutters, "Please, F-f-Frank."
"You sure you know what you're asking for, kid?" Fontaine pants up at him.
"Put me in your mouth," Jack whispers reverently, and so Fontaine does. Just the tip at first, but Jack is already coming undone, gasping loudly, thrusting up, hands clutching at the sheet beneath him. He tenses, but Fontaine extracts himself before Jack can experience release, and he whines, missing the hot, wet friction.
"Wanna fuck you, kid. You want me to...? I'll stop, I'll stop if you don't."
Jack surprises Fontaine by grabbing him by the shoulders and pulling him back up, so they're face to face (the kid really is stronger than he looks). And Jack kisses him, humming sweetly into it, before pulling back. "I want you inside me," he whispers, equally sweet, and Fontaine splutters.
"Y-yeah? You want me? You want me," Fontaine affirms to himself, feeling like a teenager again.
"Yes," Jack purrs, growing bolder, "I want you to fuck me, Frank, like no one else has. And no one else ever will. I'm all yours, I want you to so much. Please, do it."
Fontaine groans and reaches for the bedside table, withdrawing some lubricant, which he liberally coats three of his fingers with. "Just relax, baby. The more relaxed you are, the easier it will go."
And with that, he eases a finger in.
"Oh," Jack cries, wincing.
Fontaine sighs, reluctant to do what he has to do, but seeing no other option, he says, "Would you kindly relax, kid? Breathe."
And with that, Jack kind of melts, losening around the intrusion, until he is red-faced, panting for more. Fontaine adds another finger, and momentarily, another. Finding Jack stretched well enough, he coats himself with the lubricant as well and leans over, kissing Jack deeply as he slowly eases himself in.
Jack pants so hard that, deep in the back of his mind, Fontaine begins to feel bad for this, but he pushes it aside. Jack had said he wanted it, in pretty explicit terms at that. But it didn't seem to matter any more, as Jack trimbles and breaks the kiss. "Oh, God...move..." he pants.
Fontaine stares down at him amazed, "I...yeah, kid, I'm gonna...fuck, Jack," he babbles as he begins to slowly move in and out of him. Jack stares up, flushed, practically worshipful as his chest heaves at a seemingly impossible rate.
"That's it," Jack gasps, finally, "Talk to me, Frank."
"Oh," Fontaine gasps back, looking down, seeing the mischeif in the boy's eyes, "Yeah, okay Jack. You belong to me now."
"Always have," Jack replies, breathless, "You saved me, you're my hero. Love you so much."
"I'm the only person," Fontaine affirms, despite the guilt in the back of his mind supplying anything but a hero, made you this way, made you just for me, wanted you to scream my name someday, "The only person you want like this, filling you, making you feel this way."
"Yes," Jack nods, "Make me feel...so...so good, so good."
"Gonna make you come, gonna fill you up, Jack... baby," Fontaine grunts, grabbing Jack's hips and setting a slightly harder, faster pace.
"You don't know how long I've wanted...oh, god, since the first time I saw you, I just wanted you to look at me like this, wanted your hands on me, wanted you to love me," Jack confesses, turning even redder.
"You're the only person I let close enough to..." Fontaine says, amazed, "I love you, Jack, more than I've ever loved anything."
Frank Fontaine realizes, as he says this, that it is true. And he is more disgusted with himself than he has ever been. But he also wants to see the boy's face as he comes, the reverent, worshipful, lustful look in his eyes, only for Fontaine. So he quickens his pace even further, wrapping one hand around Jack's length.
It doesn't take longer than a few minutes for Jack to cry out, his head tilted back, his mouth open in a loud, wanton cry, as he shoots his seed, warm and sticky between their chests.
"Come," he whispers to Fontaine, licking the shell of his ear, and Fontaine comes undone, gripping the sheets on either side of Jack's head, the boy's hands resting gently on his hips, tightening once he's fully inside.
Jack's eyes are closed, and he whispers, "So warm inside."
Fontaine collapes on top of him, delivering short, sweet pecks, all over his face.
"I love you," Jack whispers.
I'm the only thing you know, the only thing you can love, the darker part of Fontaine's mind supplies, and it better fucking stay that way. You are mine. Anyone else so much as touches you, and I'll kill them.
Fontaine yawns and whispers back, "I love you, too."