Similarly, [if] one cohabits with [any] one of the arayos [forbidden] in the Torah, or those disqualified [from marriage] —- for example, a widow to a Kohen Gadol, a divorcee or chalutzah to an ordinary Kohen, a mamzeress or Nesinite to a Yisrael, or the daughter of a Yisrael to a mamzer or Nesinite —- he has disqualified [her]. There is no distinction between the forms of cohabitation.