YOU SAID:

so i was sitting there, peanut butter in one hand, and my dog walks in!

INTO JAPANESE

だから私はそこに座って、片手にピーナッツバターを入れ、犬が入って来た！

BACK INTO ENGLISH

So I sat there, put peanut butter in one hand, and the dog came in!

INTO JAPANESE

そこで、私はそこに座って、ピーナッツバターを片手に入れて、犬がやってきました！

BACK INTO ENGLISH

So I sat there, grabbed peanut butter and the dog came!

INTO JAPANESE

それで私はそこに座って、ピーナッツバターをつかんで、犬が来ました！

BACK INTO ENGLISH

So I sat there, grabbed peanut butter and the dog came!