After Rose accidentally uses a spell, everyone in the house gets a little animalistic. "Bunbert" can't seem to get off and Dirk gets possessive.
Most definitely NSFW.

You're kind of incredibly pissed at Rose right now.
You, Dirk and Dave had been staying with her and Roxy at the Lalonde mansion for Christmas. Usually you'd spend it at home, with your dad and sister, but you flew out here Boxing Day to see your boyfriend and best friend.
You'd been messing around last night. You'd all had a bit too much to drink (even Roxy for once) and you were messing around with their wizardry books. Rose, who was tied with Dave in who was most drunk, had read out one of the spells.
You'd felt a pain in your head, and it seemed everyone else had as well. After a little less than a minute, you were okay.
Well, if having fucking bunny ears sticking out of your head is okay.
Of course, that wasn't all it affected. Your entire way of acting was different - you really had become a bunny.
And you know what bunnies do?
They bang. A lot. All the time. They're horny little buggers.
And to top it all off, she'd lost the book.
So with no reverse spell, you were stuck like this. Horny and with a fight or flight defense system. And bunny ears.
Did you mention you really liked carrots now?
Right now, you're in bed with Dirk. He's a wolf - fluffy ears sticking up, laying down flat against his head in submission, twitching. He's been acting different too - the moment you question him he gets snappy, and half the time he looks like he wants to eat you. He also chases you a lot.
And, unfortunately, he isn't as horny as you.
You've all but given up, resigning yourself to wanking pretty much every hour or two. You're almost to the point where you're going to ask Dave for some relief, but you don't think you can do that to Dirk, no matter how desperate you are for sex.
In an act of boldness at the situation presented to you, Dirk asleep and complacent, you choose to 'fight'. Or, in this case, beg one last time to get banged.
You haven't touched yourself all day, and it's driving you insane. You wrap your legs around one of his and hump it, desperately looking for friction and release. His eyes snap open and he growls.
He pins you in a heartbeat, and you whine loudly. He growls in response, ears at an aggressive angle, orange eyes shining possessively.
"Dirk I swear to God if you don't fuck me I'm going to your brother," you plead. He bows his head, and his limbs are shaking.
"John."
You lift your hips in response, and he pushes them down. "Do you have any idea," he says through clenched teeth, "why I haven't fucked you yet. Do you think there might be a reason?"
You pout. "You're not in the mood?"
"John, there's no way I could not be, not with the way you're begging for it. I've been popping boners faster than I have since college." He pauses, and you're still confused. "It's because wolves mate for life. And you know how they mate? They fuck. And if we're stuck this way, I don't want to force you into that."
You suck in a breath. He'd been holding off in... consideration?
"And I could be too aggressive. I could hurt you."
After a moment of thought, you respond. "Rose is going to find that book and this isn't going to last forever. I don't even care, I need relief. Now. I don't care if you're aggressive or anything just fuck me."
His teeth grind together. "Don't you dare blame me for the aftermath," he growls before ripping off your shirt. Literally.
He makes quick work of your clothes, discarding them (shredded a couple times) to the floor. You arch up, needing to touch, and he pins you again, groping at the bedside table for lube.
It's not like your regular sex. He's not teasing or manipulating you. It's fast and hard, the way he preps you, the way he takes you. There is no sweetness in the way he says your pet names - no sultry way of asking you to beg for it, though you do anyway, arching and moaning with tears leaking out of your eyes at the intense pleasure ripping through you. He flips you onto all fours, something you've never done before, and pounds you. Your arms collapse from under you, and by the time you orgasm you're screaming; his mouth latching onto your neck and biting down, marking you and growling out, "Mine." Your vision goes white, you go limp, and you fade out.
When you wake up again, Dirk is spooning you and your neck stings. You don't get up to check on it; you stay in bed, relaxed,
When the two of you finally get up, an hour after he wakes up, you make your way down to the kitchen where Dave, Rose and Roxy are with their cute little kitten ears. Dave makes a snide comment about your neck, making you blush, and Roxy teases you affectionately.
Later that morning, much to your surprise, you're horny again. You would have thought last nights activities would have soothed it for at least the day; evidently not.
You move over on the couch to sit in Dirk's lap. "I'm horny."
"I'm not."
You whine. "But I need sex."
"Go give yourself a handjob or something."
"I nearly went insane doing that!"
"We'll I'm not in the mood."
You pout. "Whatever, I guess I'll have to go to Dave-"
You're pinned to the floor in seconds, his snarling face looking down at your terrified one. "Don't you fucking dare. You're mine."
You struggle to get away, instincts taking over. After a moment, when he comes to his senses, he lets go. You skitter away, back against the wall, shaking.
"I'm sorry," he says, lying on his back. At first you don't know what he's doing - but then you realize that he's submitting to you, showing that he's not a threat, and you calm down.
Another half hour passes. You're still horny.
You get him to grudgingly suck your dick.
A few days later, Rose turns you all back, and you nearly pass out from the pent-up exhaustion you have from all that sex. You immediately take a nap.
There's a scar on your neck from where he bit. But you like it. It'll always remind you of this memory.