PRINCIPAL UNDERWRITER'S AGREEMENT


     IT IS HEREBY  AGREED by and between  METLIFE  INVESTORS  INSURANCE  COMPANY
("INSURANCE  COMPANY") on behalf of METLIFE  INVESTORS  VARIABLE ANNUITY ACCOUNT
ONE  (the  "Variable  Account")  and  METLIFE  INVESTORS   DISTRIBUTION  COMPANY
("PRINCIPAL UNDERWRITER") as follows:

                                        I

     INSURANCE COMPANY proposes to issue and sell Individual Single and Flexible
Purchase  Payment  Deferred   Variable  Annuity   Contracts   (collectively  the
"Contracts")   of  the  Variable   Account  to  the  public  through   PRINCIPAL
UNDERWRITER.  The PRINCIPAL  UNDERWRITER agrees to provide sales service subject
to the terms and  conditions  hereof.  The  Contracts  to be sold are more fully
described in the registration statements and prospectuses hereinafter mentioned.
Such Contracts will be issued by INSURANCE COMPANY through the Variable Account.

                                       II

     INSURANCE COMPANY grants PRINCIPAL  UNDERWRITER the exclusive right, during
the  term  of  this  Agreement,  subject  to  registration  requirements  of the
Securities Act of 1933 and the Investment Company Act of 1940 and the provisions
of the Securities  Exchange Act of 1934, to be the  distributor of the Contracts
issued  through  the  Variable  Account.  PRINCIPAL  UNDERWRITER  will  sell the
Contracts under such terms as set by INSURANCE  COMPANY and will make such sales
to purchasers permitted to buy such Contracts as specified in the prospectus.

                                       III

     PRINCIPAL  UNDERWRITER shall be compensated for its distribution service in
such amount as to meet all of its  obligations  to selling  broker-dealers  with
respect to all Purchase  Payments accepted by INSURANCE COMPANY on the Contracts
covered hereby.

                                       IV


     On  behalf  of  the  Variable  Account,  INSURANCE  COMPANY  shall  furnish
PRINCIPAL UNDERWRITER with copies of all prospectuses,  financial statements and
other  documents  which  PRINCIPAL  UNDERWRITER  reasonably  requests for use in
connection  with the  distribution  of the  Contracts.  INSURANCE  COMPANY shall
provide to PRINCIPAL  UNDERWRITER such number of copies of the current effective
prospectuses as PRINCIPAL UNDERWRITER shall request.



                                        V


     PRINCIPAL UNDERWRITER is not authorized to give any information, or to make
any  representations  concerning  the  Contracts  or  the  Variable  Account  of
INSURANCE  COMPANY  other  than  those  contained  in the  current  registration
statements  or  prospectuses  relating to the  Variable  Account  filed with the
Securities and Exchange Commission or such sales literature as may be authorized
by INSURANCE COMPANY.

                                       VI

     Both  parties  to this  Agreement  agree to keep the  necessary  records as
indicated  by  applicable  state and  federal  law and to render  the  necessary
assistance  to one  another  for the  accurate  and timely  preparation  of such
records.

                                       VII

     This Agreement shall be effective upon the execution hereof and will remain
in effect unless  terminated  as  hereinafter  provided.  This  Agreement  shall
automatically  be  terminated  in the  event  of  its  assignment  by  PRINCIPAL
UNDERWRITER.

     This Agreement may at any time be terminated by either party hereto upon 60
days' written notice to the other party.

                                      VIII

     All  notices,   requests,  demands  and  other  communications  under  this
Agreement shall be in writing and shall be deemed to have been given on the date
of service if served  personally on the party to whom notice is to be given,  or
on the date of mailing if sent by First Class  Mail,  Registered  or  Certified,
postage prepaid and properly addressed.

     IN WITNESS  WHEREOF,  the parties hereto have caused this  instrument to be
signed on their behalf by their respective officers thereunto duly authorized.

     EXECUTED THIS _____ day of _____, 2001.

                                        INSURANCE COMPANY

                                        METLIFE INVESTORS INSURANCE COMPANY



                                       BY:

ATTEST:


                                        PRINCIPAL UNDERWRITER

                                        METLIFE INVESTORS DISTRIBUTION COMPANY







                                        BY:___________________________________

ATTEST: