CF-18 painted to commemorate the 75th anniversary of the battle of britain, 2015
There are plenty of gay people who don't get married and don't have sex. Therefore, no sin is being committed. Not to mention the fact that the Bible has been translated, and in the original Bible, there is no word for homosexuality. It actually says "male prostitution". So even if a gay couple did get married or have sex, it may not even be a sin. (Keep in mind that I am a Christian as well, and have heavily studied the subject because I am also a panromantic asexual).