Ummm actually modern philosophy tends to agree that the clone becomes its own person the moment of its creation, even if it initially shares your memory and personality. The very act of existing in a separate space from you starts diverging the life experience of the clone.
So it's just incest, and God won't smite you, except for the gay.
I'd like to argue that it is incest but not gay, since it is physically approximate of yourself and therefor an attraction to (approximately) your own body until it changes from mutation or environmental differences.
