(This is a custom clip and I can make one for you too! Just send me a DM!!) You are my older sister and I always enjoyed spending time with you. You protected me when others were mean and we had quite some experiences which bonded us together.  Since we grew up I did recognize you becoming a woman and admired your perfect body sometimes peeking at you when you were naked and did not notice. With the time I fell in love with you and in my imagination I always thought of us getting married. One day I walked by your room and heard your heavy breath and moaning voice. As I took a look inside I could see you mating with our dog. It was an unsettling picture. With this in mind I left quickly and the next few weeks during our nice and innocent movie evenings I could not get rid of that one picture: You getting humped by that vicious dog. And what frightened me the most was that this thought which shocked me at first glance became more and more exciting and sexy to me. I had to see it again, but this time longer.  (HERE is where the video starts) So I waited and as the opportunity came I took my chance. And there you were again: Bent over and getting mounted by a dog sticking deep inside of your pussy while you were massaging his balls and shouting at him to shoot his hot sticky load inside your young and fertile belly. As I grab my cock observing you, you finally notice me and call me in your room.I am completely out of excuses and don't know what to answer as you ask me about what I was doing there. Out of this silence you close the door and then respond with "well at least now you can finally watch me from close" as you go down again on all fours and continue the mating process. I watch you getting fucked by the dog till he shoots his enormous hot load deep inside your belly.  As the cock drops out of you, you turn around, stand up and walk towards me, his seed still running out of you down your legs. You look into my eyes and ask me how I would think about being part of your breeding session. If I would like the thought of me planting my sperm in your young and fertile ovaries. You smile as I nod and lay down missionary spreading your legs and say "Come".We fuck intensively and balls deep while it gets very sloppy due to all the dog sperm inside of you. Then you call me to press my cock right through your cervix and raise your legs up to your head cause you can tell by the expression on my face that I am about to cum. You command me to shoot my seed as deep as I can and as it happens you roll your eyes and smile full of satisfaction as your body shakes with every shot pumped into you. You then draw a little Sperm in the empty egg on your belly and close with the words "then it's settled little brother, from now on we will mate continuously".