September 14, 2010 02:25:26 GMT
The couple who is in the middle of divorce was taking part in Avon Walk for Breast Cancer in California.
Estranged couple Heidi Montag and Spencer Pratt have sparked rumors of a reconciliation after they embarked on a charity walk together on Sunday, September 12. Montag left her former "The Hills" co-star in May and filed for divorce in July, citing irreconcilable differences.
Pratt subsequently threatened to release sex tapes featuring his former partner, but reached out to his estranged wife earlier this month to apologize for his behavior. And on Sunday, the reality TV stars prompted speculation they are a couple once again when they both took part in the Avon Walk for Breast Cancer in Carpinteria, California.
Their reunion came just a day after Pratt was arrested in Costa Rica for illegal weapons possession and banned from the country.