No, sucking off (and/or fucking) your step son is not incest. As a matter of fact, it helps relieve tension and stress for both the cocksucker and the recipient of this wonderful therapuetic procedure. Introducing a third person into this scenario, perhaps kid sister, or brother, or perhaps a neighbour would mean a real wonderful time for all! @Konno Hikaru
Sailor Uniform Investigator - The Target in the School is Honor S*****t M Minami Kojima