Boil the pasta in salted water according to package directions. Drain them and keep some of the pasta water. In a blender, combine the basil leaves, peas, pine buds, garlic and grated parmesan. Blend the ingredients until you get a smooth paste. With the blender running, gradually add the olive oil in a thin stream, until the pesto becomes creamy and homogeneous. Add lemon juice, salt and pepper to taste. Top with more olive oil or leftover pasta water if you feel the need to thin it out. And if it's too thin, you can add more grated Parmesan to thicken it slightly. Mix wll. Add the basil pesto, peas and pine buds sauce over the pasta and toss well to coat it completely. Garnish with green basil. Enjoy!