When it was suggested that conjoined twins Lupita and Carmen Andrade could be separated, the 12-year-old girls were devastated. “Why would you want to cut us in half?” they asked their mother. Later, it was discovered separation was impossible because they share too many vital organs and their lower spine.. . When asked if they were best friends, Carmen replied, “No, we’re sisters,”. “But are you also friends?” “We’re sisters,” Lupita replied adamantly. “Just sisters.”