Cook spaghetti or fetuccine according to package instructions. Set aside.
Heat the oil in a pan. Once the oil starts to heat-up, pan fry the shrimp for 1 minute per side. Remove the shrimp from the pan and set aside.
Sear the scallops in medium heat for 2 minutes per side.Remove from the pan including the liquid that comes from it.
On the same pan, melt the butter, and then cook the garlic until light brown.
Pour the heavy cream in the pan and then stir. Cook between low to medium heat for 5 minutes.
Add the shrimp and scallops. Stir and cook for 3 minutes more.
Add the Parmesan cheese and turn off the heat. Add salt and pepper if needed.Stir.
Top the sauce over the spaghetti or you can add the spaghetti on the pan and then give and toss.
Serve. Share and enjoy!