Help me find a specific story

Hi All

After months and months of reading, this is my first post to the forum.
First, I want to say a big thank you to all writers on this site. I enjoy reading the stories here very much.

Now I have read a specific story in the past. I don't actually know if the story I am looking for is on this site or elsewhere. I have tried searching for it via google, but can't find it. The story is in many parts, like a series. If I remember it correctly it has 2 or 3 books with eah serial chapters. I don't know the title of it, nor who the author is.

The story is about a teenage boy who is living with his mother. He is kind of a lonely boy at first. At school he meets a girl (more girls later on). They are talking about earning money. The girl helps out at the catering/restaurant business of her family and she offers him to ask if he is welcome to also help out and earn some money.
As he chooses to take on the offer, he somehow needs to dress like one of the girls, because there are no male servers. He looks convincing as a girl and keeps coming back working at the place, each time changing clothes. He somehow enjoys working as a waitress, also when the mother told him that he did not need to do it anymore. Later in the story he starts also working in a women's clothes shop where he also needs to change in women's clothing.
At the end of the story he is invited to a party at the home of the mother who owns the catering business. Because there are girls who only know him as a girl, he dresses like one and also wears a girl's swimsuit, because it is a pool party.

Anyone familiar whith the above story? If so I would like to know where I can find it or who is the author of the story.

Thanks,