YOU SAID:
If I were you I'd take precaution, before you start to meet a fly girl
INTO JAPANESE
ハエの少女を満たすために開始する前に予防措置を取るとあなたをされた場合
BACK INTO ENGLISH
If you take preventive measures before entering meets fly girl
INTO JAPANESE
ハエの女の子を満たしているに入る前に予防措置を取る場合
BACK INTO ENGLISH
If you take preventive measures before entering meets fly girl
That didn't even make that much sense in English.