Sessions

[eluser]Silentman[/eluser]
This is probably a really simple question but here is my problem.

Brief -
I have the sessions database setup and its working great. I am using the freak auth code that has been tweeked a bit. The problem is when I log in it checks first to see if there is a session for the user if so then I have it checking if the user is activated.

Problem -
In the database if I delete all the sessions the users can still log in and it just recreates the session. I guess if it does that I don't see the point of the sessions being stored in the database. Ideally I would like it so when I delete the sessions in the database it will make the user re-log in.

Is what I am experiencing the normal behavior?

Thanks