Sensitive Case sec-376 how to defend

I am the prime accused in sec-376/506/My mother & younger brother in sec-354-323-341-506 / all are out on bail/I did spent one n half month in TIHAR /we hav all docs/still we do phy relati/she was my girl friend from prior 2 years from now/we did each and every thing so many times(phy. relation)she said in 164 statement that (saadi ka jhasa dekar zabarjasti sareerik sambandh banaye..)she did my bail she came to met wid me at tihar/she said in bail order that.. i went to TIHAR to met him 2-3 times and he is ready to marry is he is agree thn i dont hav any probe if he got bail. What should be my defence?