Work Text:
Fall 1995
"God, be quiet, you're gonna wake up the whole house," Dennis hisses, helping Mac through the window of his bedroom.
Mac dusts himself off. "There's only so much I can do shimmying my way up a gutter."
Dennis runs over to his door, peeks out into the hallway before shutting it and locking it. Mac is on him immediately, nose buried in his neck while he grabs him from behind. "Jesus, you smell so fucking good."
"I'm still just in pre-heat," Dennis mutters, pushing Mac off. "I told you to wait to come until tomorrow night."
Mac moves back in on him. "Doesn't mean we can't start now, right?"
Dennis rolls his eyes, pushing Mac hard enough backwards that he falls down onto the bed. "I haven't taken my pre-heat pill yet."
"So?" Mac tilts his head to the side, dark eyes looking up at him hungrily.
"So I'll get pregnant, asshole," Dennis says, frowning. "Cause I know you'll just bitch and moan about having to wear a condom and I don't wanna hear it."
Mac pouts. "But you're still in pre-heat, right? So you can't get pregnant yet, it's cool. I'll even try to pull out."
Dennis stares at him incredulously. "My god, you don't know shit about how omega bodies work, I can't believe I let you fuck me."
Mac reaches out to grip Dennis's hips, drags him closer. "What if you just take your pill right now?"
Dennis rolls his eyes, but lets Mac touch him. "It doesn't work that fast. I was gonna take it when I woke up tomorrow because my heat is due to hit tomorrow night which is when you were supposed to get here. It's not my fault you showed up a day early."
Mac whines, pushes Dennis's shirt up to nuzzle at his bare stomach. "C'mon, please, I want you so bad."
Dennis runs his fingers through Mac's hair. "You're pathetic."
"That's not a no," Mac murmurs into Dennis's skin.
Dennis shoves him onto his back, straddles his hips. "Promise to wear a condom without complaining?"
Mac whines, hands grabbing at Dennis's hips. "Can't you just take an after-heat pill instead of the before one?"
Dennis rolls his eyes. "I could, but they're way less effective."
"It'll probably be fine," Mac says, eyes roaming hungrily over Dennis's thighs.
Dennis clicks his tongue, climbs off of him. "Nope. 'Probably' isn't good enough for me. Condom or nothing."
Mac sits up on his elbows, tilts his head. "Would it really be so bad?"
"Would what be so bad?" Dennis snaps, arms crossed over his chest. God, Dennis is so pretty. Too pretty, it makes Mac stupid.
"If I got you pregnant," Mac says casually.
Dennis fumes. "What? Okay, you're fucking done. No sex for you, get out."
"But Dennis!" Mac sits up, throws his hands in the air. "I came all the way here specifically because I was promised sex!"
"Tomorrow, you idiot, tomorrow!" Dennis says. Mac can tell he wants to scream, but he can't or his frat brothers will show up in here. "And now I'm even reconsidering that. What the fuck is wrong with you?"
"Is it really that bad for me to think that?!" Mac insists. "For me to want to mate with you and have a family with you?"
"We're nineteen years old!" Dennis hisses, hands balled into fists at his side.
"So?! We're grown adults!"
Dennis's eyes widen, crazed. "Did you ever consider that even if I did want to mate for life with an alpha, which I fucking don't by the way, that it would never ever be you?!"
The words feel like a stab to the heart, because no actually. Mac had never considered that Dennis didn't want him forever. He always thought they'd end up there- mating, marriage, and babies.
"Then why have you been letting me fuck you through your heats since your first one freshman year?!"
"Because you're- you're… simple!"
"Simple?!" Mac stands up. "What the fuck, Dennis?"
"No! Not like that!" Dennis shakes his head. "Fuck, like you're safe. Like I'm-…" He trails off.
"So let me get this straight," Mac says. "You feel safe with me, but it's ridiculous for me to consider that you'd want to mate with me one day?"
"No one is ever going to get that from me," Dennis says with a scoff. "Alphas always let it go to their heads. I'm never giving up control of my life like that."
"Okay, so we won't mate, it's fine," Mac says with a shrug. "If we have a kid together, that doesn't mean I'm gonna force you into that."
Dennis stares at him incredulously. "You think a kid is any less of a tie-down than a fucking mating bond?! It would ruin my life!"
Mac looks at the ground. "I'd take care of you."
Dennis sighs, tugs at his earlobe nervously. "Can we just stop talking about this? Why the fuck are we fighting? I'm tired. Can we just sleep?"
"We?" Mac asks hopefully.
Dennis rolls his eyes, climbing under his comforter. "Yes, we. Get in." Mac excitedly goes to join him, but Dennis holds up his hand. "No, you're not getting in this bed in those gross outside clothes."
Mac hurriedly strips off his jeans and t-shirt. "Good?"
Dennis nods, turns onto his side away from Mac as he gets in. He watches Dennis's back, debating whether or not Dennis would let him touch. Eventually, Dennis huffs. "Just fucking hold me, your nervous energy is keeping me awake."
Mac wakes up to Dennis's lips on his neck and the sharp smell of his slick in the air. "Den- what-?"
"I'm in heat," Dennis groans, rutting his cock up against Mac's.
"I thought you-… thought it wasn't until tomorrow," Mac says, stumbling over his words as Dennis forcibly puts Mac's hands on his ass.
"You fucking triggered it by showing up here, asshole," Dennis says between heated kisses, tugging Mac over on top of him.
Mac licks into his mouth, reaching down to drag Dennis's soaked boxers off before gently prodding at his hole. "Fuck, you're so fucking wet for me."
"Shut up," Dennis pants into his ear, fingernails digging painfully into his shoulders. "Just get inside me, it hurts."
Mac fumbles his own boxers off, manhandling Dennis until his thighs are wrapped around Mac's hips. Mac presses the tip of his cock to Dennis's hole and is about to press inside when Dennis's hands fly out to press against his chest. "Wait, wait, wait- condom."
Mac groans, presses his forehead to Dennis's shoulder. "Come on."
Dennis stretches over and fumbles around on his side table until he comes back with a condom that he rips open with his teeth. "Shut up and put the damn thing on."
"But my knot, it's gonna hurt," Mac whines, but takes it from Dennis.
Dennis growls. "It's not gonna fucking hurt, they're literally made for this."
Mac grumbles to himself, but rolls it on. "It's too tight already, Dennis."
"Shut up," Dennis says, pulling Mac down into a kiss.
Mac thrusts into him in one quick slide, revels in how Dennis's mouth goes slack and an involuntary moan tumbles out. "That feel good, baby?"
Dennis nods, claws at Mac's back and noses at the scent gland under his jaw. "Fuck me."
Mac obliges, immediately setting a brutal pace. Dennis is definitely clawing his back to ribbons, but he loves it. Loves going home with sex wounds that take weeks to heal, like Dennis is still with him.
The fucking condom is choking his dick out, though. These are clearly made for omega dicks, but Mac isn't gonna say anything. Dennis will just think he's lying anyway trying to get out of wearing one.
He'll just pull out before he pops his knot, yeah. Roll it down out of the way.
Mac plants his hands on either side of Dennis's head, looking down at him. Dennis's eyes are closed in ecstasy, head thrown back into the pillow. He's so fucking beautiful. Any alpha would kill to have an omega like this.
In fact, Mac would tear the throat out of any other alpha who comes anywhere near him.
Mac hates having this barrier between them, hates how it's dulling his experience. Before Dennis went to college and got all these naturalist ideas put in his head, he used to take birth control pills daily instead of the pre-heat bullshit. So they could have raw sex whenever, wherever. Thanks to Mrs Reynolds who immediately put her omega children on birth control the moment they presented.
Fucking college, ruining everything and taking Dennis away from him. God, he wishes he could get Dennis pregnant. Then he'd have to stop going to school, come live with Mac forever and never ever leave. No other alphas would even think about touching him, not when he's fucked full of Mac's pups.
Dennis would be mad at first, but he'd get over it. Realize that Mac is a perfect mate and father, he'd get so fat and happy he wouldn't even think about anything else.
Before Mac even realizes what he's doing, he's reaching down and slipping the condom off before fucking back into Dennis. Barely missed a beat.
Dennis is too heat-drunk to notice, moaning and panting and begging for more. "M'gonna come," he says against Mac's cheek, arm hooked around his neck to keep him close.
Mac reaches down to fist his cock, jacking him in time with his thrusts. "Come, baby. All over me."
Dennis groans, clenching down around him as he comes. Mac's knot swells, catches on his rim before firmly tying them together as he starts to come, filling Dennis up.
Fuck, he hopes it takes.
"Are you coming in me?" Dennis asks, voice slurred slightly. "What the fuck happened to the condom?"
"Broke," Mac says, rolling them onto their sides to securely hold Dennis against him, nosing at his hairline on the back of his neck to breathe in his scent.
"Fuck," Dennis says. "I'm gonna be way more pissed about that when I come out of this in a couple days."
Mac kisses the side of his neck. "So… does this mean no more condoms for the rest of your heat?"
Dennis laughs lightly, turns his head and reaches back to pat Mac's cheek. "Sure does, baby boy."
Mac grins and starts thinking of ways he could convince Dennis not to take the after-heat pill. Or trick him into not taking it.
Either way.