The ornamental design for pants pockets, as shown and described.
FIG. 1 is a partial front view of pants pockets showing our new design;
FIG. 2 is a front view of the pants pockets shown on the rear of pants;
FIG. 3 is a left side view thereof;
FIG. 4 is another front view of the pants pockets shown on the rear of pants; and,
FIG. 5 is a left side view thereof.
The uniform broken lines, shown throughout the views, represents stitching which forms a part of the claimed design. The phantom dot-dot-dash lines represent cloth edges and stitching which form no part of the claimed design.