Name of Flower?

I had such tremendous help the last time I had a question that I'd like to try this one. I have no idea what this is - it is very "rose" looking but the petals have a waxy look and feel, especially before they completely open so I wondered if it might be in the begonia family. Someone gave it to me but they had no idea what it is. I don't even know whether I can keep it as a house plant?
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