Thread skewers in this order: bacon, chicken, bacon, pineapple. Repeat until skewer is filled and bacon wraps chicken.
Cook all skewers on a open-flame or flattop grill until browned. When bacon is crisp and chicken is cooked through, brush all with teriyaki sauce. Continue cooking until it starts to caramelize. Sprinkle with sesame seeds and serve on top of rice or a green salad.