Speaking ahead of their new Channel 5 show, Speidi: Scandal, Secrets and Surgery, the pair revealed they're still in touch with the X Factor finalist.
Spencer told The Sun newspaper this week: "I've been emailing with him so he's going to come visit us in America and we're gonna take him to West Hollywood and try to get him a husband."
And wife Heidi added: "I love Rylan I just don't want to see him up close in his underwear all day. But I'd love to be friends with him on a normal basis and maybe do a song with him. We've been talking about doing a duet.
"I've always said he's one of the funniest people I've met and really nice. It's just when you're living with someone it's very intense."
The Celebrity Big Brother runners up have gone back to America after filming their own show, which airs tonight.
As well as filming their fist few weeks outside of the house, bosses also grilled the pair on their past life in the limelight in America.
The footage will take a look back at their rise to fame in the US on The Hills, their time on Celebrity Big Brother and their new career here in the UK, which has seen them signing copies of OK! Magazine in WHSmiths.
Speidi: Scandal, Secrets and Surgery, Channel 5, 10PM