In a large Dutch oven, heat 2 tablespoon butter over medium-low heat. Add the garlic and cook for 30 seconds.
Add the lobster tails and wine. Cover and steam the lobster for 6-8 minutes. The shells should be reddish orange and the meat opaque. Remove the shells from pan.
Use kitchen shears to cut down the middle of the shell. Stop right before you reach the end of the tail. Remove the lobster meat from the shell, and cut into 1 inch pieces.
Cook the pasta according to package directions.
While the lobster cools, make the sauce. Bring the same pan back to medium heat and add the remaining butter and heavy cream. Simmer for 2 minutes before adding the salt and black pepper.
Add 1 cup of Parmesan to the sauce and mix until melted through. Add the cooked fettuccine and lobster to the sauce. Toss a couple of times and add the remaining 1 cup of Parmesan, tossing to combine. Add the fresh lemon juice and top with some parsley.