Translation of "My oh my" in German

Oh, my lamb, my sweet, I've glorious news for you.
Oh, mein Lämmchen, ich habe wundervolle Neuigkeiten.
OpenSubtitles v2018

Oh, my God, my butt is like eating my underwear.
Oh, mein Gott, mein Hintern frisst meine Unterhose.
OpenSubtitles v2018

Oh, my grandma- my grandma used to say...
Oh, meine Großmutter sagte immer...
OpenSubtitles v2018