I had grown to 6 feet in height and weighed 80kg by the time I was 16. Being active in basketball and athletics helped me build a strong body. My sister who was 5 years younger to be on the other hand never grew over 5 feet 3 inches. Hence there was a clear indication of my upper hand in physical dominance. She never risked arguing with my or take chances to fight with me as clearly there was not a chance in it for her. Thinking about it now, I bullied her every single day.
It was evident she was not happy about it. But she would just give up any kind of confrontation and goes off and sulks.
However something changes when she turned 18. My then girlfriend, Ann, was sympathetic towards my sister and tried to help her. Ann told me later about the conversation they had. Essentially Ann pointed out to my sister that she should not let me bully her anymore and should call bluff on my threats.
Unaware of this conversation, the next time I demanded the TV remote from her she did not budge. And her reply to my threats was, "I would like to see you try at least once"
Not wanting to hurt her too much, I tried to grab her hair and throw her on the floor to pin her down. But before I could get a good hold of her hair she had already slapped my arm away.
Neither of us wanted to give in, and what has started as a threat, we were now wrestling with all our strength on the floor. She thought I ll not use my whole strength against her. But after we wrestling she realised she was stronger than me. She never knew her strength. Never thought she can match someone as big and strong as me. I was very much surprised by her strength. I knew she was strong because she used to involved in gymnastics in school. But I never imagined she could match my strength. But ever more surprising was that I was struggling to keep up with her. Within less than 2 minutes she had me pinned to the ground with a half nelson move.
I was so embarrassed. I still am even though this happened about 10 years ago.
My sister realised that day that she was super strong and could overpower me. But she did not realise that that incident was arousing for her brother. I have not looked her in the eye since then, but every day since then all these year I wished to wrestle with her again, and be overpowered by my little sis. And then leading to some hard and rough sex.
Over the years I have met up with a few professional women who does semi-competitive wrestling and think about my sister while wrestling.
My sister is still in a good shape. I have put on some more mass recently and I should be more stronger now. Hope I get a chance to wrestle her again soon.