I played a cold playthrough too, but the content ends before they finish the first round of dares, no difference. If it was in the files, it might be for the next update.
Also, I found the sharing scene, it's in the park, instead of going home to have sex, you have to choose to do it in the park, the rest will be obvious after that.
I guess the truth or dare game is more for a cold path, while going home is for the love+harem path.
Also, fondling the foster mom's boobs requires 1 cool point, but takes away 1 as well, so to start something with her you can't be on 0 cool for some weird reason.
This update was weird, all of a sudden there are multiple options to have the girls have sex with others, it came out of nowhere, it's easy to stop of course, but their existence at all, with no point requirement, is weird, why did the dev suddenly add that?