YOU SAID:

I held hands with her first

INTO JAPANESE

私は彼女と最初に手を繋いだ

BACK INTO ENGLISH

I joined hand with her for the first time.

INTO JAPANESE

私は初めて彼女と手を組んだ。

BACK INTO ENGLISH

I came up with her for the first time.

INTO JAPANESE

私は彼女に初めて思い付いた。

BACK INTO ENGLISH

I first came up with her.

INTO JAPANESE

私は最初に彼女と思い付いた。

BACK INTO ENGLISH

I first came up with her.