Mom and her medication

No one in the family was exactly sure when it happened. Though one day. We assume it was when my mom had startted her new medication. She started acting differently. Dad seemed to be a lot happier as did mom. At first we just thought it was because of dads promotion. Though when mom started dressing more loosely as I would put it. It became eveident that there was more reason behind it.
         Dad didn;t know how to prefent it. i think it was more like Mom just would give him that sexy look and he would melt. Eventually we got the drift. Mom had been taking care of dad a lot more than he was used to and if he wanted it to continue Mom did what mom wanted.
         Then came the day when Mom came in the kitchen nude. It was the first time I saw her and I stared. She smiled. I saw her big breasts and her shaved pussy and I was quite red. She embraced me and shoving my face into her naked chest just laughed and said we all jhad bodies. Then when my sister came out of her room also naked I am assuming at my mothers insistence.
        Not that I complained as I was a young teen and my sister a year older than me had a great body. I sure did love looking at her younf firm breasts and shaved snatch.
Within days we turned from a consrvative family to a nudist. Then my mother crawled into bed with me one one and became my first lover. A dew days later at my moms insostece my sister wold be my second. Soon we would become a instous family. My father was my sisters first. I beleive the same night that my mother took my virginity. My father took my sisters.
          Woukd it be surprising that both my mother and sister become pregnant in a few months.
         The bad news came when my mom was taken off her medication. It took a few weeks for the medication to leave my mothers pregnant bofy. Both her and my sister were both showing a good belly swollen with babies soon to come. Me and my sister were fucking when my came into our bedroom and creamed fully clothed wobbling with her swollen tummy. I had just dumped a load of cum into my sister and withdrew with astart at the sight of my pregnant mom screaming. Soon dad came in ans realised that the fun was about to be over.
         She took my screaming mom into the living room while me and my sister finished up and cleaned. We returned wwith me into a pair of short and my sister with an oversized shit of my dads.
          We did our brst to explain to her that we were now a incestous family and that it was her idea. Caroline my sister even confided to her that they were lovers. Something even me and dad were not aware of. We were fucking both anyhow and really didnt care. My sister then kissed my mom and played wither tender breasts. She asked who had gotten her daughter pregnat and we confessed we weren't sure. Either me or dad and the same was with her. After a forced orgy and a lot of videos to show her. SHe was convinced.