Pegging

my husband the other day asked me what I wanted to try in bed if there was anything I really wanted to try. I told him i wanted to try pegging with him. He was caught off guard but didn't say no. He asked me so if you do it to me I can do it you? And I said no not necessarily. I would just like to experience what its all about. He was kinda confused and we stopped talking about. Should I habe just said yes or not rold him at all i don't know