If you're going by the Biblical definition of 'sin', then certainly not. The biblical concept of sin was designed so that no human could ever live without sinning. That would ruin the point. The bible, like any well-thought out book of religion, endeavors to have its followers pursue an impossible goal. If the goal of never sinning were reachable, then the religion would fall apart. It's a system intentionally designed for you to fail. That's why there exists 'Reconciliation' - so that Man may weep at his failure to be a God, brush himself off, and stand up again, only to be knocked down to tears once more at the feet of God, the being behind that system. Personally, I'm not a fan.
As for the concept of sin in general, I think it's silly (I'm using a very soft word there >_>) for one to live one's life by an outdated code of morality. Certainly there are things that one just should not do - killing, for example. But why should one not have *** for the purpose of pleasure rather than procreation? Why should one refuse to experience certain pleasures in life if those pleasures cause harm to no one? If there is a God, I really don't think he would care if I looked at a picture of a beautiful woman and considered her to be beautiful.
