The tightness and interior canal of a pocket pussy can vary depending on the product. One customer's detailed review described the Thrust Pro Ultra Coco Ass as having a tight opening and a second opening around 1.5 inches inside the canal, giving it a realistic feel. It is recommended to use a good quality lubricant and possibly a bullet vibrator to intensify the sensations, and some products also have a suction feature that can change the feel. It is suggested to read customer reviews and ask in forums for advice when choosing a pocket pussy to fulfill your unique needs and desires.