After looking at Jake's post I would have to agree with this. It seems that the author of "God Lives in St. Petersburg" is trying to give the idea that Christians are hypocrits. Timothy feels resentful when he has sex with Sasha because he knows that is against his religion, but as soon as he has sex with Susanna he feels "closer to God". This raises questions about religion and morals. While he is having sex with Susanna or even after having sex with her, why doesn't he think about religion. I'm pretty sure that fornication is sin in the Christian faith, not to mention that she is 14 years old.
It seems that the author is making fun of Christians by making one sin less that another sin. Having sex with a under age girl is not as bad as having sex with a man, so God forgives you. This is what I get from this when Timothy says he is closer to God. He evens thinks about if one of his sins is greater than another, " . . . he wondered if his greatest sin was not that he was pushing himself into non-vaginal warmth but that his worship was now for man and not man's maker." God forgives, but sin is sin and I feel that the author was poking fun at Christians for being such hypocrits.