Dean McDermott's ex-wife says he has stopped paying child support for their 18-year-old son

In court papers filed last week, she wrote: "Dean has stopped paying again. In the last six weeks he has been on two luxurious vacations, Iceland & the four seasons in Punta Mita. He resides in a $2 million estate paid by his mother-in-law, Candy Spelling, and has no impetus to work. He owes over $100,000 moving forward, and I believe he has no intention of paying. He bounces my son's university rent/tuition and is delinquent in paying therapist bills, while he shops visibly and throws lavish parties for his other five children."

Dean was married to Jo between 1993 and 2006 before tying the knot with 'Beverly Hills, 90210' actress Tori Spelling later that year.

McDermott and Eustace had been in court as recently as March 2017, when Eustace filed a contempt of court charge against him after claiming she owes him $100,000 in child support.

She said at the time: "[He owes me] over $100,000. He just stopped paying two years ago for our original support, and he didn’t pay child support."

It comes after Tori revealed she and Dean felt like their relationship was reborn when they became parents to their fifth child.

She shared: "We worked on everything. The relationship as we knew it died. We had to bury that and start new.

"Rebuilding our marriage took time. And now, having a new baby, it makes sense. It's like a new baby in a new relationship."

Dean is also a father to Liam, 10, Stella, nine, Hattie, six, Finn, five, and seven-month-old Beau, who he has with his wife Tori.