Alpha's Rejected Omega Mate

~ MALLORY ~ "Mallory," a deep voice whispered into my ear as I lay fast asleep on the bed. It was a lovely Friday night before my eighteenth birthday celebration. "Hmm," I hummed and tried to push the figure away, but the person looming above me gently yanked a handful of my hair. "Ah!" I gasped. My eyes snapped open. He was Ace Lennox, the Beta's son. "Ace... What are you doing here?" I asked, gazing at his honey-brown eyes. "Shush..." He hushed me by placing his thumb on my lips. "I came to see how you're doing. It's your birthday tomorrow. Don't you think you deserve a birthday gift?" he asked as he stripped off his trousers. "What kind of birthday gift is that? Why don't you wait until tomorrow to present it to me?" I asked, but he shook his head and replied, "No, Mallory. You deserve to have the gift tonight. It's very special, and I have been keeping it for you." "What's that?" I asked, looking at his handsome brown face. Ace was the Beta's son, and even as an Alpha's daughter, I lost respect because I haven't shifted since birth, and my younger sister, Sonia, has been able to shift since she was fourteen. Everyone in our pack looked up to Sonia while they overlooked me. Worst of all, Sonia basked in it, making me look like the bad person. I loved Ace and wanted to be his mate, but he doesn't speak to me during the day. He mostly avoids me, and I wonder how he managed to sneak into this room and to my bed. My room was on the top floor of the magnificent two-story building that was the Alpha's mansion, so it amazed me that Ace was able to gain access here. "I want to give you a priceless gift, Mallory, but you must promise me that you won't shout and you will enjoy it," Ace said as he removed his white top. I gulped hard, seeing his full broad chest. I felt the urge to touch him. I knew that Ace was going to be my mate tomorrow, and I wondered what the birthday celebration would hold for me, since my father doesn't like me. "I want to f**k you, Mallory. Just don't shout, alright. I want you as much as you want me," Ace said, his brown eyes glowing by that time of night. "Alright," I agreed. At this point, it warmed my heart to see that Ace wanted me. I knew everyone in the pack looked down on me, but seeing that I had someone who didn't—it made me happy. "I know that we are going to be destined mates. I want you, Ace," I told him, caressing his chest, and he brought his face closer to mine. Ace kissed my lips hungrily. He was a twenty-one-year-old boy, and many girls in our pack crushed on him, even Sonia, my younger sister, who was hopeful that by the time she turned eighteen, she would become Ace's mate. Sonia and I are only a year apart because my father married her mother after mine died after my birth. We were half-sisters, and my father had to take another Luna to help protect our pack. My mother was an Omega who happened to be my father's true mate. When I was born, the pack doctor told my father that I was an Omega too—a weak link of the pack, which disappointed him. To make matters worse, I was unable to shift like the rest of our pack members. I was short and not as tall as Sonia, who was tall, light-skinned, and very beautiful. I wasn't a dwarf, but I was of average height and not as tall as her. It hurt me that no one wanted me, but seeing that Ace wanted me and knowing that he was my mate, I agreed to make love with him, hoping that he would give me the best birthday gift. Besides, tomorrow was my eighteenth birthday party. "Are you ready?" Ace asked as he was now fully naked on my bed. I swallowed hard, not believing I was doing this with him. He had removed my nightdress and left me fully naked on the bed with him. "Yes," I moaned, breathless, and Ace prepared himself to enter me. When he crossed the bridge and entered me, I moaned and cried, and he didn't stop. Ace continued with his actions until I was about to faint. "Damn it, Mallory! You're so tight!" Ace continued, and he brought his face to mine. "You're mine," he said, burying his face in my neck. He brought his fangs and bit me. "Ah!" I groaned, and Ace climaxed inside me. After a while, he pulled out of me and licked the spot where he marked me on my neck. "I have to go now, Mallory. Happy birthday," Ace kissed my lips and dressed in haste. Just as I heard footsteps approaching my room door, it burst open, but Ace had already fled out the window. I wondered if he'd broken his leg. Then my stepmother, Luna Lily, came in. "Mallory, what are you doing on the bed, naked, at this time of night? Were you the one moaning?" She marched up to the bed and yanked my bed sheet away that I had used to cover my chest. "Mallory, you slut! Who were you f*****g in your room?" she growled and dragged me by my left arm, not minding that I was unclothed.