when she shot with Mike it was the start of her career and Mike Adriano has a distinct style that leans on the harder side. Not every woman that gets into porn starts at a 10 and doey eyed Dillion Harper was not the exception. In Dillion Harpers case you never saw her shoot IR or take overly large penises for a reason, even into the twilight of her career. The discomfort you see is real, but it has nothing to do with Mike. As a matter of fact it speaks volumes to her willingness and determination to get better by getting through a Mike Adriano scene. It must have left an impression on her because if you look back after those shoots with Mike her style completely changed as she took what she learned on in those scenes and applied it to the rest of her career.
If you want to talk about being uncomfortable then look no further then the only anal scene she shot in her career. She was in obvious pain the entire time, the guy did nothing to help prepare her or make her feel comfortable. The entire scene was 100% about his pleasure, it was borderline ra9e. I actually can't believe that studio released that scene. Safe to say he ruined anal for her and it robbed her fans of anymore scenes like that for her entire career.