YOU SAID:

crash this party like i did for my step sister wedding

INTO JAPANESE

義理の妹の結婚式のようにこのパーティーを潰してしまう

BACK INTO ENGLISH

I'm going to crash this party like my sister-in-law's wedding.

INTO JAPANESE

このパーティーを義理の妹の結婚式のように潰すつもりだ。

BACK INTO ENGLISH

I'm going to crash this party like my sister-in-law's wedding.