I've decided to find out whether wishing to/having sex with Gura would be considered a sin under the Catholic Doctrine.
You must understand the classification of Sins in order to decide this. The main two are Venial Sins, and Grave Sins. Venial Sins are nearly unavoidable acts of sin which are a part of life, and these do not break your connection with God's love. The main problem with these is that they wear on your soul, and make it easier for you to commit a Grave Sin compared to someone who has done less Venial Sins. This means that if having sex with Gura is a truly dastardly sin, it must qualify as a Grave Sin, which are split into three classifications: a Mortal Sin, an Eternal Sin, or a Sin which cries to Heaven for Vengeance.
First, and the easiest to understand, is the Eternal Sin. In Catholic practice, the Eternal sin is defined as one in which an individual chooses to reject, of their own free will, the repentance God offers. This has no application to Gura, so we are good.
Second, the Sins which cry to Heaven for Vengeance. These are very specific sins which called down vengeance from God himself in the days of the Old Testament. The sins that qualify:
>Spilling the Blood of Abel: Homocide, within the family especially
>Sin of the Sodomites: Depending on your interpretation of the Sin of Sodom, this is either nonproductive sexual acts, or living in extreme excess while those around you suffer unjustly
>The Active Oppression of the Poor
>Denying a worker their due wage, i.e. Wage Theft
Depending on your interpretation of the Tale of Sodom, this could be a path to a grave sin, but it could also be a safe path. I'll lean closer to the assumption that God punished the Sodomites for their wasteful sin overall, and not that the act of spilling seed is the only Sin of the Sodomites that called for vengeance. After all, they lived in absurd excess while their fellow citizens starved in the streets, supported by this passage,
>"This was the guilt of your sister Sodom: she and her daughters had pride, excess of food, and prosperous ease, but did not aid the poor and needy." (Ezekiel 16:49-50)
If this assumption is correct, which I believe it is, then having sex with Gura is not a Sin which cries to Heaven for Vengeance.
Finally, this brings us to the vaguest category, the Mortal Sin. In order to commit a Mortal Sin, you must fulfill three qualities:
>The sin must be a grave matter.
>The sin must be committed with full awareness of it's gravity and what it may cause.
>The sin must be done with deliberate and complete consent.
Okay, so with this, it is possible that sex with Gura is a sin, but only if it is a grave matter. With that in mind, let's look to Jesus' definition on grave matters, as cited in the story of Jesus and the Rich Young Man, where Jesus advised the man that to find salvation through God, he should follow the Ten Commandments. It can be assumed that any action which were to break the Ten Commandments is what would qualify as a "Grave Sin."
A summary of the Ten Commandments for those who are not as well versed:
>Acknowledge the Lord as the One, True God, and do not raise any other above the Lord, for he is the ultimate truth.
>Respect the Lord's name, any name used to refer to the Lord, and do not use it in vain; in other words, do not use the Lord's name for lies or invocations of blasphemy.
>Remember the day of rest every week.
>Honor your father and your mother.
>You shall not murder.
>You shall not commit adultery.
>You shall not steal.
>You shall not bear false witness against your neighbor.
>You shall not covet anything that is your neighbor's.
Going by the idea that the breaking of the Commandments is what constitutes a grave matter, having sex with Gura would only count as a sin if you went from Idolfaggotry to actual, legitimate Idolatry, and saw Gura as above the Lord himself. Assuming you don't do that, which is a simple thing to not do, as a man does not hold his wife above God, then having sex with Gura can never be a Mortal Sin worthy of confession, nor could doing so break your connection to the Lord. The only sin that would be involved is if you allowed your natural lust to be abused, and turned into a Deadly Sin that controls you, rather than a vernal sin that can be controlled by free will.
TL;DR: Having sex with Gura is not a sin according to official Catholic doctrine, so feel free to imagine your scenario guilt-free, unless you allow your passions to override your humanity, and your human nature starts being overtaken by a Deadly Sin.
