Et's Lauren Zima caught up with the cute couple at the Race to Erase Ms Gala at the Beverly Hilton in Los Angeles on Friday, where they opened up about a possible proposal after Hilton arrived with a ring on that finger.
Exclusive: Chris Zylka Gushes About His Perfect 'Soulmate' Paris Hilton: 'I'm the Happiest I Have Ever Been'
"This is actually a gift from my friend, Rosalina," Hilton explained, before her beau added that the pair are "not yet" engaged.
"You'll find out," Zylka teased.
"[We're] soulmates, for sure," Hilton gushed. "100 percent."
"You wake up with a smile and you fall asleep with a smile," Zylka said of life with his ladylove.
"[Being soulmates is] just being best friends and finally finding someone that I love and trust and know that I want to spend the rest of my life with," the former reality star added. "It's the best