Although Rhiannon's character is currently busy plotting her revenge against fiancé Brody Hudson over his role in her father's death, there's every chance Summer is thinking about what will happen next between her and Sienna.
Is Summer's affair with Sienna just another way to twist the knife into Brody, or do the two have genuine feelings for one another? Rhiannon shared her thoughts with Digital Spy.
Reflecting on 'Oaks fans' reaction to the couple, Rhiannon told us why she believed viewers are rooting for Summer and Sienna. "Audiences see that Sienna, up to this point, has been quite out of her comfort zone," she explained.
"It's brought so much of Sienna's true feelings to light, in terms of the feelings they have towards each other. I think it's a bit of a shock but it feels right to them."
Clearly grateful for viewers' "support", Rhiannon hinted that once Summer's wedding to Brody is out the way, her relationship with Sienna will be explored further.
"There's a lot of support where people can see Sienna being happy and that they are a couple that people are a fan of. I think once we get past this point of, 'Where do we go after the wedding?' it's going to be interesting to see how fans react to Summer," she added.
"Especially with Sienna because it could all work out really lovely but it could not as well. Summer's nothing if not interesting, let's say that!"
Hollyoaks usually airs new episodes from Mondays to Fridays at 6.30pm on Channel 4, with first-look screenings at 7pm on E4.
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