Cook the pasta according to package instructions, until al dente. Drain and set aside, reserving some pasta water.
In a large skillet, heat olive oil and 2 tablespoons of butter over medium heat.
Add minced garlic and red pepper flakes, sautéing until fragrant, about 1 minute.
Add shrimp to the skillet in a single layer; cook until just opaque, about 2-3 minutes per side.
Pour in the white wine and bring to a simmer, scraping up any browned bits from the pan.
Stir in the cooked pasta, lemon juice, and remaining butter. Toss to coat, adding reserved pasta water if necessary.
Finish with fresh parsley and serve immediately with additional lemon wedges, if desired.