YOU SAID:

John slowly kissed my neck, my chest, and bellybutton, and he was going lower in my body

INTO JAPANESE

ジョンはゆっくりと私の首、私の胸、おへそにキスをし、彼は私の体の下に行っていました

BACK INTO ENGLISH

John slowly kissed my neck, my chest, navel, and he was going under my body

INTO JAPANESE

ジョンはゆっくりと私の首、私の胸、へそにキスし、彼は私の体の下に行っていた

BACK INTO ENGLISH

John slowly kissed my neck, my chest, navel, and he had done under my body

INTO JAPANESE

ジョンはゆっくりと私の首、私の胸、へそにキスし、彼は私の体の下でやっていた

BACK INTO ENGLISH

John slowly kissed my neck, my chest, navel, and he was doing under my body

INTO JAPANESE

ジョンはゆっくりと私の首、私の胸、へそにキスし、彼は私の体の下でやっていた

BACK INTO ENGLISH

John slowly kissed my neck, my chest, navel, and he was doing under my body