Donna Martin’s back! TORI SPELLING takes five with 7-month-old daughter STELLA DOREEN on the Los Angeles set of _90210_ on Wednesday. Husband DEAN MCDERMOTT also brought 22-month-old son

LIAM AARON (extended post) along to watch Mommy reprise her famous role for upcoming episodes of the CW show. See more images of the Spelling-McDermotts in their Family Album! A PHOTO OF

DEAN AND LIAM BELOW!