YOU SAID:
keep it in your pants
INTO JAPANESE
ズボンの中に入っておく
BACK INTO ENGLISH
keep in one's pants
INTO JAPANESE
ズボンの中に入る
BACK INTO ENGLISH
go inside one's pants
INTO JAPANESE
ズボンの中に入る
BACK INTO ENGLISH
go inside one's pants
You've done this before, haven't you.