YOU SAID:

お腹と背中がくっつきそうなくらい腹ぺこだよ。

INTO JAPANESE

腹と背中がくっつきくらい腹ぺこだよ。

BACK INTO ENGLISH

I'm so hungry that my belly and back stick together.

INTO JAPANESE

お腹が空いたのでお腹と背中がくっつく。

BACK INTO ENGLISH

I'm hungry, so my stomach and back stick together.

INTO JAPANESE

お腹が空いたのでお腹と背中がくっつく。

BACK INTO ENGLISH

I'm hungry, so my stomach and back stick together.