Nincomproof

Given: nincompoops exist

Assume: categories exist

Prove: x = nincompoop

Proof:

x: Do you have a boyfriend?

o: I don't do boyfriends.

x: So you just fuck?

o: I fuck men.

x: Well done.

o: You too?

x: God no.

    I fuck women.

o: I don't.

    I make love to women.

Therefore, x = nincompoop

Possibilities:

x = straight male, gay female, bi female

o = bi male, straight male, gay female, bi female

# of possible combinations: 12

N.B. nincompoops may exist outside of x