Explain that you want to try out what Sarah is into.

"Last night, my girlfriend told me that she was into..." You wave your hand around the room to indicate everything in the store. "This."

"And you want to understand it better?" She asks. "That's very sweet."

"I read a lot about it online but that's all a little..." You look for the right word. "Theoretical."

"And you want to try it out for yourself?" She takes your meaning.

"Yeah." You say. "I'm not sure where to start."

"Well you'll need some diapers. " She leads you to the back wall and chooses a pack. The picture on the front shows an adult sized version of a baby diaper. It even has little cartoon animals in diapers printed on it. "You might want to get a pacifier or a baby bottle. They are a good way to feel babyish."

She leads you over to the accessories and you select a bottle.

"And finally an outfit. It helps to look the part." She explains, leading you over to the clothing racks. "Would you like to be a baby boy or a baby girl?"

"Why do you think I'd want to be a baby girl?" You ask a little too defensively.

"Some men do." She says. "I just thought I'd check."