What Am I? SeXStoRY

What Am I? Tell me what Am I? I lurk in the city suburbs I drink the bl**d and eat the flesh of the low class. Their bl**d is very sweet and their flesh is chewy I cannot get enough of it One day a middle class drops by and i try him His flesh is meaty and his bl**d is so sweet I lurk now in the middle level of the city They are my feast. I need more. One day I hear from my lunch about the high class. Their bl**d is thicker than water, and tastier I ponder as I rip my lunch and sip the red ooze. I ascend to the highest level and gaze at the wonderful food They dress like kings and eat like gods I faint from lust and love. I am in heaven So tell me, What Am I, my sweet, sweet dear lunch