The estranged wife of transsexual porn star Buck Angel has a solid argument on why she shouldn’t have to pay spousal support — under Louisiana law, they can’t be married, because “she” never became a “he”– i.e., no dong.

Angel is an award-winning transsexual porn star who famously appeared on “The Howard Stern Show” in 2006 (Google it, it’s amazing).

According to court docs … Buck’s estranged “wife” Elayne claims Buck never sealed the reassignment deal with the proper apparatus.  Elayne claims since Buck doesn’t have to tuck, the union was never legal because Louisiana does not recognize same sex marriages.

Buck is gunning for $2K a month in spousal support.  He’s also alleging Elayne secretly moved $500,000 out of their joint account.

Under Louisiana law, a person doesn’t change sex unless the genitalia is altered.