You are...

you are the letter to my math ((which means useless))
 
you are the amature to my porn

you are the sub to my anime

you are the sink to my kitchen

you are the music to my porn ((which means your awful but nobody knows because you are on mute))
 
You're the fly in my soup
The pebble in my shoe
You're the pea beneath my bed
You're the bump on every head

These are slightly altered lyrics.