How to do Update/Insert with extra fields not required in Class?

I have a BLL layer with a Users Class as follows:
    Public Sub New(ByVal UserId As Integer, ByVal aspnetID As System.Guid, ByVal FirstName As String, ByVal LastName As String, ByVal EmailAddress As String, ByVal Telephone As String)
        Me.UserID = UserId
        Me.aspnetID = aspnetID
        Me.FirstName = FirstName
        Me.LastName = LastName
        Me.EmailAddress = EmailAddress
        Me.Telephone = Telephone
        Me.FK_UserName = FK_GetUserName()
    End Sub
 
In my DataSource I have 2 methods as follows:
    Public Sub UpdateUser( ... , ByVal Password1 As String, ByVal Password2 As String, ... )
 &n ...