Regulus Black lay curled up in his bed, his body tense and trembling. The room felt too bright, the ticking of the clock too loud, and every sensation was magnified, grating against his nerves. The contractions had started over an hour ago, and now they were coming every fifteen minutes, each one a wave of pain that made him whimper. His eyes darted around the room, overwhelmed by the sensory overload, and his breathing was shallow and erratic.

He clutched the edge of the blanket, his fingers digging into the fabric as he tried to find some focus, some way to ground himself. But everything felt too much. The light, the sounds, the pain—it was all crashing down on him, and he couldn't find a way to make it stop. His heart pounded in his chest, and he started rocking back and forth, a small whimper escaping his lips. He knew he was spiraling, falling into an autistic meltdown, but he couldn't help it.

Sirius, sitting beside him on the bed, reached out to touch Regulus's shoulder, but Regulus flinched away, his skin too sensitive to bear even the gentlest touch. His eyes were squeezed shut, tears leaking out of the corners as he shook his head, trying to block out everything. "Sirius," he gasped, his voice tinged with panic. "I can't... it's too much. Everything's too much!"

Sirius's heart ached for his brother. He had seen Regulus in pain before, but this was different. The combination of labor and sensory overload was pushing him to his limit. "It's okay, Reg," Sirius said softly, trying to keep his voice calm and steady. "I'm here. Just try to breathe with me, alright? In and out, nice and slow."

But Regulus couldn't find his rhythm. His breathing was shallow and rapid, his body tense and unresponsive. He let out a keening cry, his fingers clawing at his hair in frustration. "I can't do it!" he cried, his voice breaking. "It's too loud, too bright, too... everything! Make it stop, Sirius, please!"

Sirius felt a wave of helplessness wash over him. He wanted to take the pain away, to make the world less harsh for Regulus, but he didn't know how. "Reg, listen to me," he said, leaning closer so his voice could cut through the chaos. "Just focus on my voice. Block everything else out. It's just you and me, okay? I've got you."

Regulus opened his eyes, his gaze locking onto Sirius's. The connection helped, grounding him a little, but another contraction hit, and he cried out, his body arching with the pain. Tears streamed down his face, and he began to shake more violently, the overload intensifying.

Orion Black entered the room, his face creased with concern. He took in the scene—Regulus's trembling form, Sirius's desperate attempts to soothe him—and quickly moved to the other side of the bed. "Regulus," he said gently, his voice a calming presence in the chaos. "I'm here too. We're going to get through this together. You're not alone, son."

Regulus's breathing hitched, but he nodded, clutching Sirius's hand tightly. The familiarity of his father's voice, combined with Sirius's steady presence, provided a fragile lifeline. "I... I can't focus," he whispered, his voice trembling. "It's too much."

Orion placed a reassuring hand on Regulus's shoulder, careful to keep his touch light. "Just one step at a time, Regulus. Focus on your breathing first. In through your nose, out through your mouth. Try to match my breathing, okay?"

Regulus struggled to follow, his breaths coming in shaky gasps. But with Sirius holding his hand and Orion guiding him, he began to find a rhythm. It wasn't perfect, and he still felt like he was drowning in sensory input, but it was something to hold onto. He clung to the sound of their voices, using it as a lifeline to pull himself back from the edge.

Suddenly, another contraction tore through him, stronger and more painful than before. Regulus screamed, his body tensing so hard it hurt. The pain, combined with the sensory overload, was too much. He let go of Sirius's hand, his arms wrapping around himself as he rocked back and forth. His breathing became more erratic, and he started to hit his head with his hands, trying to block out the pain and the noise.

"Regulus, no!" Sirius cried, grabbing his brother's wrists gently but firmly to stop him from hurting himself. "It's okay, Reg, just breathe. We're right here with you. I know it's too much, but you're safe. We'll get through this together."

Orion moved closer, his hand still on Regulus's shoulder. "Regulus, listen to me. You're doing so well. I know it feels like everything is crashing down, but just focus on one thing. Focus on my voice. You're safe, and we're here to help you."

Regulus's eyes flicked between Sirius and Orion, his breathing still ragged, but he tried to follow their words. He closed his eyes, trying to shut out the room and the overwhelming sensations, and focused solely on the sound of his father's voice, the feel of Sirius's hands holding his.

Slowly, the meltdown began to subside. Regulus's breathing evened out a bit, the tension in his body lessening. He still trembled, and tears continued to flow, but he was no longer in the full grip of panic. He clung to his brother's hand, his eyes squeezing shut as he tried to block out the pain.

Regulus felt the pressure building again, signaling the final stage of labor. He was exhausted, his body and mind worn out from the pain and the meltdown. But he nodded weakly, knowing that he had to keep going. "It's coming," he whispered, his voice raw from crying. "I can't... I can't do this alone."

"You're not alone," Sirius said firmly, his grip on Regulus's hand tightening. "We're both here. Just one more push, and it'll be over. You've got this, Reg."

Orion positioned himself, his face calm and focused. "When the next contraction comes, Regulus, give it everything you've got. We're right here with you, every step of the way."

Regulus braced himself, his whole body trembling as another contraction hit. He pushed with everything he had, his cries filling the room. The pain was blinding, but he kept his focus on his father's voice and the feel of Sirius's hand holding his.

"That's it, Regulus!" Sirius encouraged, tears in his eyes. "You're almost there! Just a little more!"

Regulus felt a sharp, burning pain, and then a sudden release. A high-pitched cry filled the room, the sound of new life. Orion gently lifted the newborn, wrapping the baby in a soft blanket. "Regulus," he said, his voice thick with emotion, "you have a beautiful baby girl."

Regulus's eyes widened, his body still shaking as Orion placed the tiny, wailing baby in his arms. He looked down at his daughter, the pain and fear replaced by a profound sense of love and relief. The world around him faded, and all he could see was the little face peeking out from the blanket, her cries filling his heart with joy.

"She's perfect," Sirius whispered, leaning over to see his niece, his own tears flowing freely. "You did it, Reg. You really did it."

Regulus looked up at his brother, his eyes shining with gratitude. He held his daughter close, feeling the warmth of her tiny body against his chest. The lights were still too bright, the sounds still too loud, but holding his daughter made everything bearable.

"Thank you," Regulus whispered, his voice breaking. "Thank you for being here."

Sirius hugged him gently, careful not to disturb the baby. "Always, Reg. I'm never leaving your side."

Orion placed a hand on both his sons' shoulders, pride and love shining in his eyes. "We're a family," he said softly. "And we'll face everything together."

As Regulus held his daughter close, he knew his father's words were true. No matter what challenges lay ahead, they would face them as a family. And with Sirius and Orion by his side, he knew he could get through anything.