Oral..

So my husband and I were talking about like different things he wanted to try or wanted me to do. He says he wants to cum in my mouth, and I say why? I didn't think you liked that and you've never asked me too.. (We've been together 2 years now) and then he says I just think it would be hot. Should I go for it? Or should I think something else? I wouldn't mind it but he out of nowhere now wants me too...