"We have talked about [an engagement]," Colton revealed during a Wednesday appearance with Cassie on Good Morning America.
"Right now, we are enjoying dating and we're going to enjoy dinners and movies and walks on the beach. But we have talked about an engagement, so we'll see! We'll see where it goes."
In fact, talk show host Jimmy Kimmel gave Colton a beautiful diamond engagement ring designed by Neil Lane to use if he decides to propose marriage to the love of his life during the couple's Tuesday night appearance on Jimmy Kimmel Live!.
"We've already talked about the ring," Colton confirmed.
"Yes about getting engaged," Cassie reiterated. "It's been a while since [our final days in Spain taped]!"
Colton and Cassie are now dating and claim to be very in love with each other after a whirlwind relationship and breakup on The Bachelor.
Cassie initially dumped Colton before their overnight Fantasy Suite date in Portugal because she wasn't "in love" with him and didn't feel ready for a marriage proposal, but Colton decided to fight for her and win her back.
Once Cassie agreed to give Colton a second chance -- after he eliminated bothHannah Godwin and Tayshia Adams to prove his love -- she met his family and then the couple enjoyed a do-over of their Fantasy Suite date in Spain.
"She doesn't have a ring on her finger yet, but she will, one day," Colton toldPeople, adding that Cassie is definitely his "girlfriend" right now.
"We definitely talk about our future engagement," Cassie added. "We're both excited to get to that point."
Colton has called Cassie his "future fiancee" and "future wife," so Bachelor Nation will be excited when their plans finally come to fruition.