I can be either character in most of the pairings that follow...
1]. -m/f m/m- A teenage boy picks up his first job working the counter at a fast food restaurant. A couple of girls he knows from school also work there. They flirt with him. The tease him. They tease him about the obvious crush the male manger has on him. The manager could be female, but I prefer a male here.
2]. -m/m m/f- A teenage boy moves into a new neighborhood with his mom. He becomes friends with another skateboarder who lives a few doors down who is a year, or two, older. His new friend has a girlfriend. His new friend is also bi and tries to get him into a three-way with his girlfriend.
3]. -m/m- A teenage boy ends up letting the dad of one of his friends get into his pants for a few bucks. The man sometimes calls him by his son's name and has him wear his son's clothes. The man starts buying him girls clothes.
4]. -m/m- Two straight teenage brothers run away to the big city and find the only way for them to get by is to prostitute themselves. They can be twins, or maybe a year's difference between them.
boy/cousin m or f