I have two problems with Scrap:
1) After Scrap meets Tao you should receive his first heart, but in one of my playthrough, even though he tells me he loves me, nothing happens. Is not dependent on likes since the playtrough with less likes has the heart. I don't know if it's a bug or I have made a wrong choice.
2) When sleeping with Scrap there is a chance that he takes advantage of the fact that you're sleeping. I know there is a possibility of been awakened by Scrap inserting your cock in his ass, but every time he's slutty I receive only a blowjob. There are some requirements to fuck Scrap? I though maybe you need a heart, but whit that I had only my dick touched by Scraps while he sleeps.