Valentines Day - Greeting 4

If I were a key, I would lock you;
If lightning, then I would shock you;
If I were a pier I would dock you;
If I had a band I would rock you.
If I were a spoon, I would feed you;
If I were a house, I would deed you;
On Valentine's Day, I must plead you,
my Valentine, I really need you!