Rinse the peeled and deveined shrimp under cold water and pat them dry with a paper towel.
In a large skillet, heat 2 teaspoons of olive oil over medium-high heat until it shimmers.
Add the minced garlic to the skillet and sauté for about 30 seconds until fragrant.
Add the shrimp in a single layer, sprinkle with salt, pepper, and sugar, and cook for about 2-3 minutes until pink and opaque.
Flip the shrimp, add melted butter and remaining olive oil, squeeze fresh lemon juice, and cook for another 2-3 minutes.
Remove from heat, stir in minced parsley, and transfer to a serving dish.