Silverwings paced up and down the floor of her room, a worried growl on the edge of her lips. It was that time again. The time of the month where her feral instincts would take over if she didn't show extreme constraint. And she meant extreme.

Last month had almost been a disaster. The Titans had been in the middle of a battle with the H.I.V.E Five when Silver had been caught off-guard by an intense throb pulsating through her gut. It had caused her to falter and nearly incapacitated her in the middle of battle. Once they had taken back the Tower, Silverwings had locked herself away in her room for the remainder of the week.

Now it was that time again.

Silver reached the wall, and just as she started to turn around, a deep heat went through her and she cried out in shock.

Why? Why is it getting worse?

The silver-haired teen was not unfamiliar with the cycles that came and went every month. She had spent the majority of her life as a wolf, until the Brain, back when he was still a human, had captured her for his experiments and she had ended up with shapeshifting powers. From there, she had encountered the Doom Patrol and a mysterious figure known as Slade before falling into the lap of the Teen Titans.

It was with this team that Silverwings started to learn more about humans and superheroes than she ever thought possible. Beast Boy had been a crucial factor in helping her adjust. There was just one problem.

Neither her nor Beast Boy were mated. Although they were very young in the eyes of humans, their animal instincts were developed to full maturity. Silver's were much stronger, due to her origins, and despite her human desire to stay independent, she knew the animal inside couldn't resist forever.
Footsteps in the hall. Someone was coming.

"Silver? You ok? You've kinda been in there for a while."

Beast Boy.

"Oh, rat dung," Silver cursed under her breath, one hand curling around her abdomen while the other pressed against the wall for support.

This was not a good time for him to be here. Silver's body cried out for her to open the door and let Beast Boy claim her, but her logic screamed that they were way too young. She couldn't put Beast Boy through something that he might not understand yet.

"I – I'm fine, BB," Silver called out weakly, unable to suppress a moan.

She could feel him from the other side of the room. Even with the door closed, Silver could feel his pheromones seeping from him and coming towards her. How had she been able to suppress this for so long? More importantly, how was he able to have such an intense effect on her? BB didn't exactly fit the dominant male role.

As the alpha female of her previous pack, Silver had been satisfied during each cycle by the alpha male. After her transformation, when she was on her own, her heats had been something she could take; not too painful, not hard to resist. Then she joined the team, and they had grown somewhat uncomfortable, but not unbearable. It wasn't until Beast Boy and Silver had been injured in a fight and their pheromones had actually touched each other, that her heats had become the most torturous thing she had ever experienced.

"Umm, are you sure? You don't sound fine," Beast Boy remarked with confusion. "Can I come in?"

"No!" Silver cried out frantically.

The second that door opened, she wouldn't be able to resist. She knew that. Silver would lose control to the animal inside her whose desires were growing, no matter what her logic said.

"No, Beast Boy, please don't," she begged, this time in a softer tone. "It's not safe for you."
Another throb went through her body, and she slid down to one knee with a groan. Silver could sense his wavering emotions – the concern and the hesitation – and she silently prayed that he would leave.

She should have known better.

The door slid open with a quiet hiss.

"Silver, what is going on – oh."

The second Beast Boy laid eyes on her, Silver could see a change taking place in the back of his mind. Whether he realized it or not, they were both doomed. Her scent had attracted much stronger males than Beast Boy in the past, but none of them appealed to her as strongly as this one did now. Beast Boy didn't stand a chance, and neither did she.

"S-Silver…what is…you…why do you smell so good?"

Beast Boy was fighting a losing battle. She could see it. Whether it was wrestling with his instincts or struggling to figure out the sudden change in her attitude, didn't matter. Not anymore. His pheromones had invited the wolf out to play, and she was here for a show.

Silver slowly lowered her other knee to the floor before stretching a leg out, almost in cat-like fashion. Her eyes were glued to Beast Boy's face as recognition flickered across his face. He was starting to understand.

"Close the door," Silver purred.

He was unusually quiet as he pushed the button on the wall, an expression of uncertainty on his face. Silver was mildly surprised when Beast Boy took a step further and locked it.

"You're…in heat, aren't you?" he asked in a low voice, taking a couple steps towards her.

They had never talked about it. Never acknowledged that this kind of situation could happen. In the backs of their minds, they knew, of course, that it was always a possibility. Now they were being faced with the exact scenario the two animals had been avoiding for so long. It had only been a matter of time.

She could see how he grit his teeth, his hands curling into fists to stop himself. Beast Boy was indeed showing a lot of restraint towards someone who was so willing to give in. Yet amidst his confliction, Silver could sense the sparks of youthful desire starting to ignite within him. They were already a burning flame in her.

Don't do this, her logic whispered.
What are you waiting for, her urges roared.

Silver's hooded eyes locked with Beast Boy's piercing gaze. A deep, pulsating throb coursed through her body, more intense than anything she'd ever felt, and she moaned loudly. Beast Boy's irises dilated at the sound, the edge of his lip twitching as he fought to maintain control of himself.

It was useless. Silver knew it. She just had to coax the beast out of the boy to prove it. The female stretched out her body with an alluring purr, rolling onto her back to show her belly in a complete show of submission. A low growl came from Beast Boy, his body poised into a crouch as he struggled to resist.

"Silver, wh-what are you doing?" he snarled, his breath coming out in short pants.

How had he not given in to his instincts yet? She couldn't hold out any longer. The ache in her body had been going on for too long, and this time, there would be no holding back. This male needed to be hers – now.

Silver parted her lips with a pleading whine. "Beast Boy…please," she begged.

His resolve snapped. Silver gasped when he finally pounced, his lithe body coming over hers with alarming agility as he tangled his hand in her ponytail, jerking it to the side so his mouth could latch on to her neck. Silver moved her body with his as she succumbed, whimpering loudly as his canine teeth broke skin and sunk into her throat.

She cried out, wrapping her hands around his head, holding his teeth to her as his pheromones seeped into her open wound, mixing with hers to create an entirely new kind of bond between them that only existed between mates.

For the briefest of moments, Silver saw the same wild being in Beast Boy that had always resided within her. However, Silver's animal was tamed.

Beast Boy's was not.

"Silverwings-" he growled when he detached his teeth from her. "-you're mine."

She flinched, whimpering softly as Beast Boy dragged his tongue over her fresh mark. One hand remained tangled in her hair as the other ghosted over the waistline of her leggings. Silver jerked, letting out a yelp of alarm at his actions.

This was the consequence. Her actions had awakened something much more feral in him than Silver had expected, and now it was too late. Her body and instincts would not resist, and before her mind could refuse, Beast Boy was crushing his lips into hers with a hungry ferocity.

She submitted.