Bring a large pot of salted water to a boil.

Add fettuccini noodles to the boiling water and cook according to package directions until al dente.

While the pasta is cooking, prepare the Alfredo sauce.

Drain the cooked fettuccini noodles well and return them to the pot.

Add heavy cream to the pot with the pasta, adjusting the amount to achieve your desired sauce thickness.

Add butter to the pasta and cream mixture.

Stir until the butter is melted and the sauce is smooth and creamy.

Add the cooked shrimp to the sauce.

Stir well to combine the shrimp and sauce, ensuring the shrimp are evenly coated.

Return the pot to low heat and warm the ingredients through, about 2-3 minutes.

Serve immediately, sprinkled with parmesan cheese.