Ah, thanks! That helps a lot :) Though, I'm not quite sure how to get the one where Hikaru is blindfolded though.
And ah, I believe the 10th one is where Hikaru fingers Haato. I got it randomly during a foreplay scene, sometime before the seventh time we've had sex. It might have to do with me making Haato bottom for Hikaru at the fireworks festival and staying a submissive bottom up till that point entirely. My Hikaru is a dominant top. As for what I was doing in foreplay mode to trigger it, I was literally just randomly clicking around, I think I was switching back and forth between kissing his mouth and his neck and it just randomly triggered.
Hope that helps! Sorry I can't be anymore specific!