Men want anal sex and to be swallowed. What do women want?

It seems to me that things like anal sex and swallowing - just 2 examples - are often at or near the boundaries of what women will try. I'm a man so I don't have the same perspective but I think that if I was a women I would love to try these things and much more.

But I'm not a women so I'm curious, what would be the equivalent acts for a man in a straight relationship? Is there anything women want but are afraid to ask for? Are women just not as interested in taboo acts?