How to Create a friend request system/Users system??

[eluser]bretticus[/eluser]
[quote author="flyenig" date="1254005029"]How would i acheive a simple friend request system?
for example, Kenny sends a friend request to Jake, Jake accepts and they become friends.
and i can view all of johns friends[/quote]

That is not a specific question: How would I achieve a simple friend request system? So here's my broad and overarching answer:

Store Kenny's friend request in the database. When Jake logs in, display that he has a request. Let Jake accept or deny the request and store that in the database so when Kenny logs in he can see Jake's profile.

See how that works?