YOU SAID:

My dad gives great head when my brother watches us

INTO JAPANESE

私の兄が私たちを見ているとき、私の父は素晴らしい頭を与える

BACK INTO ENGLISH

When my brother is looking at us, my father gives us a wonderful head

INTO JAPANESE

私の兄が私たちを見ているとき、私の父は私たちに素晴らしい頭を与えます

BACK INTO ENGLISH

When my brother is looking at us, my father gives us a wonderful head