It all depends on your beliefs, your interpretation of the bible and you.
I'm not religious at the moment, but I'm not saying that can't change.. and if at some point when I'm more mature, an omnipotent God will certainly understand the doubt that I've had, and also understand my own personal journey. As it says in the Bible, he knew us before we were ever born, and knows every detail about us.
The journey doesn't have to be perfect to get to the same destination.
It is my understanding that if you ask God for forgiveness, it is granted. My own personal belief also happens to be that IF there is a God out there, and he was/is our sole creator, then he hardwired sexual response the way he did for a reason. Sexual release is a WONDERFUL feeling.
Don't live your life in fear, and don't worry about what others think. Do you think God will seriously punish you for seeking that which makes you happy, especially if what makes you happy harms no one?