Heat a large skillet over medium-high heat. In a bowl, toss the shrimp with 1 tablespoon of the oil and the pimenton. Add the shrimp to the skillet and cook, stirring frequently, for 1 to 2 minutes, or until golden pink and just cooked through. Add half of the garlic during the last few seconds of cooking. Spoon the shrimp into a bowl.
Return the skillet to the heat. Add 2 tablespoons of the oil, the pepper flakes, bay leaf, and the remaining garlic. Cook for just a few seconds, or until the garlic is fragrant and turns golden. Add the tomatoes and cook for 2 minutes, or until most of the liquid evaporates.
Add the tomato paste and cook until the mixture starts to darken. Add the beans and broth. Simmer for 4 to 5 minutes, or until it reaches a thick stew consistency. Stir in the shrimp and parsley. Continue cooking for 1 to 2 minutes, or until just heated through. Drizzle with the remaining 1 tablespoon oil. Serve immediately.