Alice is my step sister? and she is my wife now?!!

After 5 min of those two gigglings, I removed the cloth and I saw lass over Alice biting her finger. Those two got off each other fast. "You guys were…" I said surprised. "No! That's not the thing you were thinking merlin!!" Alice shouted. "BROTHER IT'S NOT THE THING YOU ARE THINKING!!" lass shouted. They explained me and here's what they said. 'Alice has to be bitten on the finger by a demon every day, that's why lass was biting her finger'. "Why do you have to do it?" I asked. "Because when I was a baby my mother was a demon and my father was a human… my father was a scientist and he made a portion that I drink and don't turn into a demon… well I broke the spell when I met lass," Alice said smiling. "lass goes to your room and Alice come I wanna talk to you," I said staring at them. lass ran to the room and I fell asleep. I felt someone over my face and was very close. I opened my eyes and it was Alice trying to kiss me. she had shut her eyes very tight and I smiled. she finally reached my lip and I grabbed her and held her tight. "hey washboard, what were you trying to do?" I asked being very naughty. "shut up merlin!" Alice said blushing, "come I'll lick your hurt on your neck!" I said as I saw her neck bandaged. "LEAVE ME, YOU CRAZY KING! YOU PERVERT!" she started screaming. I bit her neck and she screamed harder. "why didn't you come and ask your husband to bite your finger? You know he is the demon king" I whispered in her ear. "LILITH! HELP!!" she screamed more. suddenly ice appeared around us. I saw a scar on her neck under the bandage. I held her tight and removed the bandage. I saw the scar which my mother had. "this scar…." I said thinking. Suddenly she jumped and kicked me hard and ran away from me. she hugged herself very tight. "where did you get that scar from?" I asked. "um… I told you my mother was a demon…" she said. "that's not possible!" I said keep on thinking. "what is not possible?" she asked. "my mother had the same scar" I said. "what? so… you mean… when your father died… she married my father? And then burned them all?" she said crying. "it can't be like this… something is not right here… my mother every day said me she was working on something and didn't allow me to get in her room. she said I'll be an older brother. Then Lilith came and then she again told me I'll be an older brother. Then a girl with beautiful hair came to me and hugged me… but… if that girl is you… then…" I said thinking. "no merlin… that's not possible… I was born from a royal family" she said. "even me" I said. Lilith came and she was sleepy, "big brother put me to bed" she said. she fell asleep on my lap and I kept on thinking as Alice made tea. I held Lilith and put her on her bed and put the blanket over her. I and Alice kept on thinking and gave guesses. "omg! I forgot my parents' death anniversary!" she shouted. "it's okay" I said. "it's not! I promised my real father to come and see them every year!" she yelled. "Alice calms down," I said. "I can't! if I break my promise… something would happen" she said almost starting to cry. She ran fast outside and I followed her. "Alice!" I shouted. she ran fast crying and I followed her. "Alice hold up!" I shouted. she reached the graveyard and ran inside. she reached her parent's grave. She sat on her knees and started crying. I ran to her. it was cold and I gave her my coat. "I'm sorry father… mother… I wasn't brave enough to save you guys" she said crying more hard. I heard someone near and I saw a beautiful girl. "excuse me? can you move? That's my mother's grave" she said to Alice smiling. "what?" Alice said. I slammed my head with my palm hard and was very disappointed. Alice checked the name it was the same as her parents. so… they are from one mother? "my mother died in the warfighting with the humans and she won the war… but… when she married another man they burned them all" she said. "can I ask you who was your mother?" I asked. "She was Lucifer II. She was very kind to the humans… but the humans were greedy and settled a war. My Elder brother and my Elder sister died too, I never found their bodies… so the people said that they were burnt" she said almost starting to cry. "What? ALICE! ALICE we got the answer!" I said. ALICE looked at me. "SHUT UP YOU DEMON KING LUCIFER III!" Alice yelled hard at me. "Lucifer III?" the girl said and looked at me. "ELDER BROTHER! ELDER BROTHER!" I heard Lilith screaming. I saw her and I called her here. she ran and the girl was shocked. "brother… she… is… sister," Lilith said shocked.