YOU SAID:

Christa is my sister who sits on my bed and she is so funny.

INTO JAPANESE

クリスタは私のベッドに座っている私の妹で、彼女はとても面白いです。

BACK INTO ENGLISH

Krista is my sister sitting in my bed and she is so funny.

INTO JAPANESE

クリスタは私のベッドに座っている私の妹で、彼女はとても面白いです。

BACK INTO ENGLISH

Krista is my sister sitting in my bed and she is so funny.