The sticky feeling of your tongue and the pleasurable constriction of the back of your throat feel real and very stimulating when you enjoy oral sex. As for the anus on the other side, a small insertion port tightens the insertion feeling oppressively, and the narrow wart-like structure inside will rub against the root every time it hits, and enjoy ejaculation until orgasm! And with the QR code, you can download provocative voices and enjoy the intoxicating game together! WARNING: Keep the product away from children. DO NOT expose the product to humid places, direct UV or sunlight for an extended period. Product is a reuseable after wash. DO NOT use this product with more than one person. DO NOT place any object inside the cup for use. Safety Precautions: Always clean the product before and after use. We recommend using water-based lube with your toy.