Same-sex attraction is sinful according to the Bible, which explicitly defines homosexuality as a sin (Leviticus 18:22; Romans 1:26–27). Jesus teaches that desiring to commit a sin is akin to committing it, implying that same-sex attraction, which is not within God’s design for humanity and relationships, is also sinful (Matthew 5:27–28). Although sin may feel natural, that does not justify its approval. Instead of following our own sinful desires, God offers something far greater than the fleeting pleasures of sin. Resisting sinful desires is part of pursuing a life of wholehearted devotion to Him (Romans 8:18). Our feelings do not define us; we have the power to choose to follow God's design, rather than succumbing to societal pressures or our instincts.
Sin does come naturally to us, but there is no reason to think that just because something comes naturally, we should approve of it. If we followed that thinking to its logical conclusion, we would all live like animals, with no principles, no morals, no pursuit of education or higher thought. We would be "like irrational animals, creatures of instinct, born to be caught and destroyed" (2 Peter 2:12). But this is not what God desires for those made in His image (see Genesis 1:27).
The things that God has in store for us are much, much better than the pleasures of this world. They are untainted by decay and sin and uncertainty. They are eternal. As Paul said, "I consider that the sufferings of this present time are not worth comparing with the glory that is to be revealed to us" (Romans 8:18). Don't be deceived by the pleasures of sin. Whether your struggle is with same-sex attraction or some other sin, the attraction to those sins is Satan's trap to keep you away from God's good gift. For "each person is tempted when he is lured and enticed by his own desire. Then desire when it has conceived gives birth to sin, and sin when it is fully grown brings forth death" (James 1:14–15). It's okay to fight your darker impulses. You are not being dishonest or failing to be true to yourself if you resist your sinful tendencies. Our feelings and desires do not have to define us—we have a will and can make a choice to follow what we decide is right, rather than letting our bodies and our culture decide for us.