Earlier this week, viewers saw Doug (PJ Brennan) begin to question whether he was seeing Ste as more than just a friend as they shared a hug at their new business.
The pair recently teamed up to open a deli in the village and are currently working to get the outlet ready for launch.
Richardson today (April 13) told Channel 5's Live With Myleene: "Ste didn't have any friends, so he's started this friendship with Doug. And they've now become business partners and maybe something else might happen - a relationship possibly."
Pressed on whether fans can expect a romance for the duo, he continued: "Yeah, I think so! Doug [tries] to set him up on online dating, so when Ste does go on a date with another guy, Doug gets these feelings.
"Is he jealous that he's going on a date with a guy, is he jealous because his friend has been taken away from him? He's questioning all his emotions, and then in the weeks to come you'll find out why."
Doug's unexpected feelings have led to uncertainty over what the future holds for Ste's on-off relationship with Brendan Brady (Emmett Scanlan).
Richardson continued: "Brendan's always going to be in the mix. Obviously last year we did quite a big storyline - it was gay domestic abuse, which is hard to do.
"A lot of 'Stendan' fans, they are desperate for Ste and Brendan to be together. We've got 'Stendan' and 'Stug' - I'm just happy that my name's in both of them! The 'Stendan' fans are going absolutely mental and want Ste and Brendan to be together.
"But I think if we really do take a serious look, it's gay domestic abuse and we can't be seen to promote that. So he'll always be in the mix, but whether they're going to be together is a questionable thing."
Hollyoaks airs weeknights at 6.30pm on Channel 4 with a first look screening at 7pm on E4.
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