Love, Theoretically by Ali Hazelwood

            So maybe you like to be full.

            Yes. Yes. It appears that I do like to be full.

            “Is it all in?”

            He shakes his head. I consider laughing in his face, telling him that he’s lying, but he’s in no shape to do so. His eyes are glassy. The arm he’s propped himself up on is shaking on the side of my head, like the effort to pace himself is somewhere above the realm of what’s human.

            “You’re . . . big.”

            He nods, like he knows and it doesn’t matter. My nipples are hard pebbles against the expanse of his chest, and the contact is exquisite. I could come just from this—rubbing myself against him.

            I let out a reedy laugh. “Is this what sex feels like for normal people?” I ask, moving my hips, circling, tipping back and forth, just to see where this could end up going. The possibilities are tantalizing.

            “No one has felt like this in all of history,” he tells me, voice deep and shaky, and then he’s kissing me hard, his tongue licking inside my mouth, and after a few seconds of that I’m softer, I’m open, I’m lost, and it takes only two upward thrusts, one forceful and the other almost accidental. Then I’m taking him right to the hilt, feeling his sack flush against me, and it feels like something dreamt, something meant to be.

            “Fuck,” he murmurs again, but I barely hear him. I focus on my own body, the way it’s stretched full. I feel Jack in the bones of my skull, in the tips of my toes, and everywhere in between. I thrum, flutter gently around him, and even though I’ve never been this close to anyone else, it’s still not enough. He must know, because he gathers me off the mattress in his arms. I am completely, utterly surrounded by him, by the perfect tension of this moment, and Jack begins to push in and out of me, in and out, delicious rhythm and drawn-out friction.

            I cannot take it. It’s too brilliantly, stupidly good. My head lolls back against his pillow, and his lips find my jaw, nip my chin, bite my neck. “I’m going to fuck you everywhere, Elsie.” He licks the hollow of my throat. “Between today and the day we die, I’m going to fuck you everywhere.”

            I nod. Let him know that he can. There is a tight, liquid pool blooming inside my stomach, twitches of pleasure making their way down my limbs, surging up my spine. I reach for Jack again, pull him to me for the kisses I want, but it doesn’t work. We’re too raw, too new at this, too desperate to catch every drop of this. Our lips press together, then they pause, forgotten by both of us.

            “Can you come like this?” he asks, his breath a hot wash against my ear.

            I’m drifting away. I’ll never hear his voice and not think of this. Of the deep, rough bite of it sinking inside my brain. Of the whispered Yes and This way and Perfect and—

            “Elsie.” His body trembles around mine. On the verge of tipping over. “Can you come this way?”

            “I don’t know. I—maybe?” I’m close, I think. About to snap. It’s phenomenal, the way he hits everywhere inside me at once, a masterpiece of biology that something could work so gloriously, and I just need a little more—just a little more—

            “Shit.” His thrusts quicken, he buries his face in my throat, and I think he’s getting close. I think he didn’t expect it. He doesn’t want to come, not yet, but this might be fully out of his control.

            And it’s what I want. To see him lost in something. “You’re good. This is good,” I urge him, and the word is such a paltry substitute when what I mean is This is the best thing I’ve ever felt and Thank you and Whatever you want, really, whatever you want, just take it.

            “Fuck,” he says again, and I see it in his face, the second it’s all over for him. His hand closes around my hip, holding me to him while he presses as far as he can go, and then I feel his cock jump in quick, jerky movements. “Elsie.”

            I’m moaning. He’s gasping. His skin slides against mine, sweaty, and my body clamps down on him. His back tenses into a slab, and I hold him while his hips turn erratic, then stop, then—

            The heat spreading inside me comes to a halt. I watch Jack’s eyes go blank, feel him bite my collarbone like I’m his anchor, like he wants to be reminded that I’m really here. The grunts he lets out come from somewhere deep inside him, somewhere I doubt he himself knows, and I hold him to myself until his orgasm dies down to a few clumsy, involuntary thrusts.