Cook the macaroni according to package instructions until al dente.
Drain and set aside.
In a saucepan, melt butter over medium heat.
Stir in flour to form a roux.
Add salt, pepper, and paprika.
Slowly whisk in the half and half to avoid any lumps.
Continue stirring until the mixture thickens.
Combine cheddar and parmesan.
Stir into the sauce, cooking until the cheese melts smoothly.
Blend in the cooked macaroni and lobster meat.
Transfer to a baking dish and sprinkle some extra cheese on top if desired.
Bake in a preheated oven at 350°F for about 20 minutes, until golden and bubbly.