Treacherous Affairs [Scisaac] Wattys2015 Winner

The Sequel to Dangerous Liaisons. BoyxBoy. 2015 Watty Award Winner.
This is a story that centres around Scisaac but features Sterek heavily. Set two months after DL, Isaac and Scott still havent told Scott's mother about their relationship, despite having already said their "I love yous". Not only that, they haven't completely taken their relationship to the next level with Scott worried that rushing things will ruin it.
With Stiles and Derek finally settled into a natural rhythm, Isaac feels somehow that Scott is ashamed of their relationship.How will they work it out? Will something more sinister get in the way?
WARNING: This story will contain smut.