Whisk together white sugar, brown sugar, and melted butter in a second, larger bowl until well combined. Whisk in eggs, lemon juice, vanilla extract, and almond extract until thoroughly combined. Add in milk and sour cream and beat until mixture is smooth, and no lumps remain. Pour in dry ingredients and fold in a few times until just moistened; there should still be some clumps of dry flour. Sprinkle blueberries over the batter, and fold in until just incorporated. Batter will be lumpy, but should not have patches of dry flour remaining in it. Do not overmix.
