Hate replying to this years later, but I have to correct this. No, "Now, when it comes to illustrations, it's definitely illegal in America if the characters are under 18." is absolutely false (unless it's a photographic recording or can be reasonably assumed to be painted - or nowadays more easily applied a filter - over such, with the US unlike many other countries having no "private use" exemptions for legal couples under 18). It's the same nonsense of US payment providers bowing to conservative pressure groups (and nowadays disturbingly also pseudo-progressive social media mobs). In other countries, however, such stupid laws do exist, but they are always in accordance with their general age of consent (as if the characters were real life human residents), which for the those that actually matter as markets ranges between 14 (Germany) and 16 (UK), so legally the game would've been in the clear either way.