Boil lobsters and remove meat. Reserve shells. Saute lobster meat and sliced mushrooms in butter for 5 minutes. Add salt and pepper to taste. Add sherry and braise for 2 minutes. Blend flour into mixture, then slowly stir in milk. Add cheese and stir until it melts. Sprinkle with paprika. Remove from heat and blend in egg yolks. Fill lobster shells. Sprinkle with Parmesan cheese and a dash of paprika. Place under broiler to brown. Recipe By : Celebrities Serve