Could homosexuality have originated as a way of attracting members of the opposite sex?

Bear with me, but is it possible that homosexual tendencies have evolved as a way to better empathize with members of the opposite sex, making it easier to seduce them? An in depth knowledge of what is appealing in the same sex could be very useful in attracting the opposite. Maybe in some cases, this sense is exaggerated to the point that it clouds out traditional heterosexuality and overtakes it completely. You think? Just an idea, which I admit is far fetched.