Took me 32 years to realize that it's not about boobs or ass. I love sensual women.
There's pretty, there's beautiful, there's sexy. That's all discernible in a simple picture.
But sensual, it's something about how a woman speaks, the subtle energy she gives, her physical reactions to you. I don't know how to put it, man.
Some dudes say it's the eyes, but I think it's a natural charisma that certain women have. A softness that makes them linger in your mind 5 year after you were with them. A lot of sex has something to do with the state of mind. Some chicks have that gift of giving you that

mood.
Don't wife 'em though.