In a large mixing bowl, mix together the lobster
meat, shrimp, onions, tomatoes, cucumbers, cilantro, citrus juices, olive oil, and salt
and pepper to taste to combine the flavors and allow the citrus to cook the meat.
Cover the bowl tightly with aluminum foil or plastic wrap, and refrigerate for 1
1/2 to 2 hours. The lobster and shrimp will be opaque and firm.