My sister who is 11 barged into my room again without knocking. I really hate it. This time I was totally ready for her. She was almost knocked over when she saw me jacking off my big ole thingy. She ended up closing the door and acting sweet and polite. She checked out her first guy very closely. She finished me off with her first h*******, and for a week now we are doing more and more.I’m 16.