Here I categorically disagree with you. Firstly, it is a question of porn playing and reasoning about family values and morals is of no importance here. A good half of all porn games about incest and this is the most famous game of the same Big Brother. In them, the same can be associated not only with family members, but from this they do not cease to be an incest-game.
Secondly, your judgments about the predominance of Sam's content are incorrect. Here the text of the author of the game was already quoted, where he clearly wrote that the line of Sam has already begun, and the line of Dylan and his sister from the 7th day. Points of sympathy for Sam 24 by 16 in Dylan, if all is worked out. I've uploaded Sam to get points from Sophia's bad wife, without them you can not deal with Sophia, for example masturbation after watching TV. Thus, Sam's points are only one-third larger, although his line has begun, and Dylan did not even begin.