"I've asked her to marry me, again, and she's agreed," Ryan told ABC News.
"I used to ask her to marry me all the time," O'Neal said for the interview to air Friday on 20/20. "But ... it just got to be a joke, you know. We just joked about it."
When asked about the wedding dress, Farrah joked that she's going to look "like a gigolo. You know? And a little thin mustache and slicked-back hair. I don't know. We have fun, we tease about that."
Farrah has been battling cancer since 2006, and is said to be in a really fragile state, so the couple plans on tying the knot as soon as possible. What a great memory for the couple to share together. Congrats!