Addressing recent backlash that the scenes between the schoolgirl and creepy boyfriend Nathan Curtis (played by Chris Harper), the soap star said they “definitely” need to be shown early.
She explained: “I think it's really good that we're exploring the storyline and that we're playing it at this time.
“It needs to be out there, because it's a taboo subject that people don't necessarily want to speak about.
“The people we're trying to raise awareness for will be watching Coronation Street at that time – young girls, young boys and their parents.”
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Sonia went on to add that it has helped parents talk to their children about the dangers of speaking to strangers online and recognising when they are being abused.
“I've had a woman say to me that she's really happy it's being shown, because she watches the show with her daughter,” she revealed.
“This is an issue she's wanted to speak to her daughter about, but she hasn't known how to bring it up, because how do you start that conversation? But because of this storyline, she's actually been able to talk to her about it.”
“So it needs to be shown at these times, definitely,” Sonia insisted.
Coronation Street: Nathan has been grooming Bethany to sleep with his friends Coronation Street's most dramatic moments Thu, January 12, 2017
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Coronation Street's most dramatic moments.
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The actress also revealed that while her character is currently busy manipulating Bethany to sleep with Nathan’s friends, there are “twists and turns” to come.
“The storyline has a while left to run and we’ll still see Mel being a big part of it,” she teased.
Coronation Street airs tonight on ITV at 9pm.