GNAB-024 Amateur male and female monitoring experiment, Getz！！ The serious sister J◎× big dick brother who go to the same school try to get closer using a smartphone face-swapping app but end up swapping bodies… Moreover, if the method to return to normal

Approach siblings on the street who are sensitive to trends! They cooperated under the pretext of testing the latest smartphone functions, but this smartphone actually has a feature that swaps their bodies. Unaware of this, the siblings excitedly start messing with the phone... When people suddenly find themselves in someone else's body without any warning, their minds can't keep up and they try to recognize themselves through various means. Moreover, the sister who has just acquired a male reproductive organ is overwhelmed by the sensation and starts vigorously thrusting against her brother like a monkey...