I hated the original game, one of only two games I ever deleted from my PC... That said I still remember the story up till the vacation at the Aunt's house ended... Why are people putting all the blame on the Cousin for the shit that went down ? Granted I did see that most people only play the Son route as they dont find the BEAUTIFUL daughter attractive (wtf??)... but if you did play the dad route to get the FULL complete story you'd learn that while yes Karen has an attraction for BOTH the uncle and the male cousin, she is not a homewrecker... the stupid Aunt FORCES her to do that shit that happens at night...
The Aunt is verbally and physically abusive as all fuck towards Karen, you see tons of examples on both routes, but mostly on the dad route... When you first arrive at the house she calls the daughter beautiful and how pretty her blonde hair is compared to her own daughter's "disgusting greasy black hair" (she literally says those words). She also physically abuses her basically sitting her down naked on the dad MC, and later beats the crap out of her when she "catches her" in the act... the Next day she kicks her out of the breakfast table, and tells her she can eat like the servants after everyone is done or away from the family...
So either we played different versions of that depressing game, or you guys skipped a tons of dialogue to hopefully get to the non-existent sex scenes.