**Chapter 1: The Crimson Cycle**

Regulus stared at his reflection in the mirror, wincing as he took in the familiar signs of his monthly cycle. His cheeks were flushed, and his eyes looked heavier than usual. He could feel the weight of his crimson curse bearing down on him, making his body ache with a dull, throbbing sensation. As he reached for the pack of sanitary products on his nightstand, a shiver ran down his spine, and his mind began to wander to the one person he hoped would help him through this tumultuous time – James. Regulus and James had been dating for a few months now, and their relationship had been a whirlwind of adventure and passion. James was understanding and supportive, always willing to lend a listening ear or a comforting hug. But Regulus knew that his monthly cycle could be a challenge, even for someone as loving and patient as James. As he changed into comfortable clothes and began to make his way to the kitchen, Regulus couldn't shake off the growing sense of restlessness inside him. His body was screaming for relief, and his mind was fixated on James. He recalled the way James's eyes crinkled at the corners when he smiled, the way his hair curled slightly at the nape of his neck, and the way his voice rumbled deep in his chest. Regulus's thoughts were interrupted by the sound of James's voice calling out from the living room. "Hey, love! How are you feeling today?" James asked, his tone laced with concern. Regulus took a deep breath and tried to sound casual, despite the turmoil brewing inside him. "I'm okay, just a bit...cranky," he replied, wincing at his own understatement. James appeared in the doorway, a look of understanding on his face. "Ah, I see. Well, in that case, let's get you comfortable, shall we?" He strode over to Regulus, his eyes locked on his face, and gently brushed a strand of hair behind Regulus's ear. Regulus felt a jolt of electricity run through his body, and his heart rate quickened. He knew that James was aware of his increased libido during his cycle, and he could sense the unspoken offer in James's eyes. A flutter in his chest, Regulus nodded, his voice barely above a whisper. "I think that would be great." James smiled and took Regulus's hand, leading him to the bedroom. "Get on the bed, love. I have just the thing to help you relax." As they reached the bed, James pulled out a pillow and held it against his chest. "Ride my pillow, Regulus. Let go and let me take care of you." Regulus felt a rush of arousal at James's words, and his body responded instinctively. He straddled the pillow, feeling the softness of the fabric against his skin, and began to move, his hips swaying in a gentle rhythm. James watched him, his eyes filled with love and desire, as Regulus let go of his inhibitions and surrendered to the sensations coursing through his body. As Regulus rode the pillow, he felt his tension build, his body craving release. James's eyes never left his face, and Regulus could sense the love and acceptance emanating from him. In that moment, Regulus knew he was exactly where he was meant to be – in James's arms, surrounded by love, trust, and desire.