Heat oil in a large skillet over medium high heat to 350 degrees F (175 degrees C).
Chop and mash shrimp using a large knife. Mix in flour, egg yolks, salt and pepper. In a separate bowl, whisk the egg whites to stiff peaks and fold into the shrimp mixture.
Slice bread into 4 pieces each. Put 2 teaspoons of the shrimp mixture onto each piece and sprinkle with sesame seeds.
Starting with the shrimp side down, fry for 3 minutes. Turn, and fry for another 3 minutes or until golden brown. Remove from oil, drain on paper towels and serve warm.
