YOU SAID:

When I eat pizza both or nome of them get fatter

INTO JAPANESE

私がピザを食べると、両方またはそれらの名前が太くなる

BACK INTO ENGLISH

When I eat pizza, both or their names get fat

INTO JAPANESE

私がピザを食べると、両方またはその名前が太ります

BACK INTO ENGLISH

When I eat pizza, both or their names get fat