I still love my big brother, but...

im sorry if i misspell some stuff but im really upset and i need to tell someone, anyone but someone who can put my brother in jail, and im scared to tell anyone. im sorry, i just really need to tell some one. when i was 10 me and my brother went to our dads to spend the night. he[my brother] took me to a room that no one else was in. he told me to take my shirt off, and i did. i didn't know what to do... he then touched me in inappropriate places, but i didnt care, it felt good and i liked it. i didnt know it was wrong. he continued to touch me like that until i was 12. we always slept in the same room until then. i feel so bad about it. but i still love my brother and i dont want him to go to jail! and i dont want to hurt my families relationships. i dont know what to do!! i cant tell anyone! he hasn't raped me yet, and he wasn't forceful, and he didnt penetrate me yet but i dont know where else to go!