On December 2, 1987, Phillips was arrested in Amarillo, Texas, for marijuana possession after being pulled over for speeding. Phillips was a passenger in the car with boyfriend Geoffrey Tozer, and the marijuana was discovered after police searched the couple's vehicle. Phillips was booked and released on $500 bond. Also in late 1987, Phillips sang backup vocals on Belinda Carlisle's studio album "Heaven on Earth", as well as its number-one single "Heaven Is a Place on Earth". The following year, she appeared in the "" first-season episode "" as Jenice Manheim, wife of the scientist Paul Manheim. Phillips and Tozer got engaged on February 29, 1988. The couple took in Aron Wilson, a friend of her son Austin's, whom they legally adopted and raised.