YOU SAID:

i love to pet frogs on their silly little heads

INTO JAPANESE

私は彼らの愚かな小さな頭の上のカエルをペットするのが大好き

BACK INTO ENGLISH

I love to pet frogs on their stupid little heads

INTO JAPANESE

私は彼らの愚かな小さな頭の上でカエルを撫でるのが大好きです

BACK INTO ENGLISH

I love to stroke frogs on their stupid little heads

INTO JAPANESE

私は彼らの愚かな小さな頭にカエルをなでるのが大好きです

BACK INTO ENGLISH

I love to stroke frogs on their stupid little heads