When I was 16, I was tapping both my younger sisters, they must have talked, because one day, when all 3 of us were home along, they cornered me and threatened to tell mom unless all 3 of us got in bed and screwed. We did and it was great. Went on for a few weeks when mom did catch us 3 naked in bed( I was srewing the 12 year old one and the 14 year old one was sucking her nipples), Mom spanked all 3 of us right there and then, and ordered me into her room, she hadn't even let me get dressed. Once in her room, she made me bend over and she licked her finger and shoved it up my ass. It got me so hot, I got a huge boner again, she coundn't help but smile. She told me to stop with my sisters, but as her and dad were divorced, I could be man of the house. After that, she bought a small dildo and wouls lube it and shove it in my ass, and have me fuck her. We stopped when I turned 18 because she didn't want me to be a panzy.