19 Celebrity Mistresses Who Became the Main Squeeze

Tori Spelling and Dean McDermott were both married to other people when they met on the set of Mind Over Murder in 2005 — Tori to playwright Charlie Shanian and Dean to Mary Jo Eustace. The unions ended in 2006 due to their infidelity, and they got married just a month after Tori's divorce was finalized in May 2007.

Together they have four kids, as well as Dean's son Jack from his first marriage. While they're still together, their marriage hasn't been without its controversies, from cancelled reality TV shows to Dean's adultery and 2014 rehab stay.