"Wouldn't It Be Nice"

When I listened to the stack-o-vocals version of "Wouldn't It Be Nice" yester-day, I noticed that "long" in the line "Then we wouldn't have to wait so long" is sung with a melisma (D C Bb), musically giving a sense of that length of time.  Similarly, "never-ending" in the line "I wish that ev'ry kiss was never-ending" is sung with an extra syllable (although only in the backing vocals), also giving a sense of elongated time (if not exactly "never-ending").