It was first referred to in the Bible (Genesis 38:9) where it was called "Onanism" and it was considered a sin in those days because the act wasted se...en instead of using it for reproduction. Well at the age of ten, I didn't even know who Onan was or why he was put to death by God for his actions, but I didn't really care. I just knew that, in my case, Onanism relieved sexual tension and made it easy for me to fall asleep. Besides, I didn't want to reproduce anyway.So I have enjoyed. I opened the door and yelled hello. No one answered but I heard the shower going. I went upstairs, I guess deep down I was hoping to catch one more glimpse of my sister's perfect b cup tits and freshly shaved pussy. The bathroom door was opened a crack and my cock began to throb as I looked in the crack and spied her drying her leg propped up on the bathroom counter. I unzipped my jeans and felt my hard cock through my underwear as I watched her. Beautiful. I had fucked her before - once. From then on, I began using bras and blouses. Now I did go out with myrelatives sometimes, from time to time, leaving discreetly to breastfeed (Ilater found out my cousins followed me in secret to spy on my breasts).The physical changes continued. I noticed my penis, which had never beenvery big, kept shrinking, and soon it was like a young boy's. Actually, savebetween my legs, my body was a woman's, and now it was no longer a secret, Idressed as such from the waist up.It being summer, it was. ‘I love you. I can’t wait to see you.’ She hung up and hurriedly turned around, bumping into the brick wall of a man behind her. ‘I’m so sorry sir. I–,’ she noticed the Marine-issued boots. She blinked back the tears that burned her eyes as she scanned up until she was able to look at a pair of familiar green eyes. The squeal that had left her mouth couldn’t have possibly been stopped. She wrapped her arms around his tall neck and pressed her mouth tightly against his, in the process squishing.