The Him & Her star wrote on her Twitter page that she has filmed scenes for the E4 drama.
"Had great time filming Skins in Bristol," she said. "What talented young'uns in the cast! Even though I was playing a MOTHER to a TEENAGER (gulp)."
Solemani did not reveal further details of her character but joked: "Just to confirm, in my role in Skins, I play a very young mum to a very young teenager. So..."
Skins, which is due to return for its new series early next year, will introduce new characters in future episodes.
Huey Morgan has hinted that he could return to the show, but Peaches Geldof recently claimed that the series "gives a bad name to modern adolescence".
> Read more Skins coverage
Watch Sarah Solemani chatting to Digital Spy about Him & Her below: