YOU SAID:
me and your girlfriend playing dressup at my house
INTO JAPANESE
私とあなたのガールフレンドは私の家でドレスアップして遊んでいます
BACK INTO ENGLISH
me and your girlfriend dress up and play at my house
INTO JAPANESE
私とあなたのガールフレンドはドレスアップして私の家で遊びます
BACK INTO ENGLISH
me and your girlfriend dress up and play at my house
You've done this before, haven't you.