YOU SAID:

I farted on my boyfriend's leg in my sleep and it woke me up

INTO JAPANESE

寝ている間に彼氏の足をオナラして目が覚めた

BACK INTO ENGLISH

I woke up with my boyfriend's leg fart while sleeping

INTO JAPANESE

寝ている間にボーイフレンドの脚オナラで目が覚めた

BACK INTO ENGLISH

I woke up with my boyfriend's leg farts while sleeping

INTO JAPANESE

寝ている間に彼氏のオナラで目が覚めた

BACK INTO ENGLISH

I woke up with a boyfriend fart while I was sleeping

INTO JAPANESE

寝ている間にボーイフレンドのおならで目が覚めた

BACK INTO ENGLISH

I woke up with my boyfriend's fart while I was sleeping

INTO JAPANESE

寝ている間にボーイフレンドのおならで目が覚めた

BACK INTO ENGLISH

I woke up with my boyfriend's fart while I was sleeping