A radio on the windowsill
Carmen tells one story more than any other. During a match on the radio, the baby kicked in time with the commentary. Every time the crowd went up, so did the kicking.
Told to Beni, it was Beni. Told to Beto, it was Beto. Told to both at once, Carmen says she cannot possibly be expected to know which twin was which from the inside, and changes the subject.
Never resolvedBoth brothers quote it as proof of something. Neither has ever got a straight answer. Thirty-four years of asking has produced nothing but a change of subject.