In a large saucepan, melt butter over medium heat. Saute garlic for 2 minutes. Add crabmeat, cheese, cream, and pepper. Cook, stirring occasionally, for about 5-7 minutes. Keep warm.
Cook fettuccine in a large pot of boiling salted water until "al dente." Drain and toss with crab sauce. Garnish with parsley. Serve with additional Parmesan on the side.