And the former star of The Hills revealed to Digital Spy that it was her brother Spencer Pratt who had initially hooked her up with the reality TV cad - and claimed that the pair were similar.
She said: "Yeah! He introduced us. Spenny went to South Carolina with my brother at some point, I guess he was in LA and they met there first and then they met when Spencer came over to do Big Brother.
"We are seeing each other. I don't know about the interview he's done, but we do talk about being the female or male version of each other all the time. I think the reason we get along so famously is because we were best friends immediately.
"Because he's so similar to my brother... it's just like, I get his sense of humour and the way he behaves, I think he's an absolute riot."
Steph also insisted that she hadn't been put off by the self-styled lothario's reputation for cheating.
She said: "I'm sure I have a reputation that I don't love as well. I think everyone does. It didn't put me off."
We told you recently that Steph appeared to be filming for the forthcoming series of MIC.
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