King, 44, recently proposed to Cynthia Kelley, who served as juror number five, RadarOnline is reporting.
Videotape of the beating was first aired on KTLA.
The video caused outrage across the country, raising tensions between the black community and the LAPD.
The officers were tried and acquitted, sparking the Los Angeles riots of 1992 which lasted four days and left 55 people dead.
King and Kelley say their connection began shortly after his civil trial the following year.
Both were married to other people at the time and have since divorced.
The pair reunited four months ago.
"She is a godsend, a blessing in my life," King told RadarOnline.
"It was like we were never apart from one another," Kelley told the site.
No wedding date has been announced.

