The weird world of reality TV has spawned another first.

Two women who appeared on “The Bachelor” and “The Bachelorette” are engaged to brothers — one of whom also appeared on a different season of “The Bachelorette.”

Confused?

Here’s the scoop: “Bachelorette” DeAnna Pappas (Season 4) is engaged to Stephen Stagliano, while Holly Durst (“The Bachelor: London Calling”) is engaged to Michael Stagliano — Stephen’s twin brother.

Michael was on Season 5 of “The Bachelorette”; Stephen, it seems, is immune from the reality TV bug (so far).

No word on a wedding date — or if the brothers will marry their reality-show gals together or in separate ceremonies.

TV special, anyone?