01 - Bring a large pot of generously salted water to a rolling boil. Cook the linguine according to package directions until al dente. Before draining, reserve 1/2 cup of the starchy pasta water. Drain the pasta thoroughly and set aside.
02 - While the pasta cooks, heat 2 tbsp butter and the olive oil in a large skillet over medium-high heat until shimmering. Lightly season the scallops with salt and pepper. Sear in the hot skillet for 1-2 minutes per side until golden brown and just cooked through. Transfer to a plate and set aside.
03 - Add the lobster pieces to the same skillet. Cook for 2-3 minutes, turning occasionally, until the meat becomes opaque and just cooked through. Remove from the skillet and set aside with the scallops.
04 - Reduce the heat to medium. Add the remaining 3 tbsp butter, garlic, shallot, and red pepper flakes. Sauté for 1-2 minutes, stirring constantly, until fragrant and the garlic is pale gold but not browned.
05 - Pour in the white wine and let it simmer for 2-3 minutes until reduced by half, scraping up any browned bits from the bottom of the skillet.
06 - Stir in the lemon juice and zest. Return the scallops and lobster to the skillet along with any accumulated juices. Gently toss to coat everything in the sauce.
07 - Add the drained linguine to the skillet. Pour in some of the reserved pasta water as needed to create a glossy, emulsified sauce that clings to the pasta. Toss in the chopped parsley and season with additional salt and pepper to taste. Serve immediately, garnished with extra parsley and lemon wedges.