I was walking on the street, wearing nice jeans and a crop top who was revealing my whole belly. I stopped in front of a paper from a research center. It was writen, they was posting a request for any volunteers, male or female, for a new research where the main subject, is the belly. I couldn't let this slide off my hands. I took any informations I need and go to my house to get changed in cute clothes, exposing my belly and then, drove to the center to register myself as a volunteer. I have a cute belly, ticklish and loud when it start to gurgle. Once in the center, I go to the receptionist office