I agree these videos are simple and to the point, and that they try to include a bit of story/foreplay which makes them great!
However, I wish Doberman would make a couple of videos with a stronger reluctance and/or pregnancy risk theme.
In other words, the way the girls are enthusiastic removes a lot of the conflict and "danger" of infidelity. And while many videos make sure to note they're fucked bareback and creampied, that doesn't come with any weight or consequence.
Highest on my wishlist therefore is starting a new series where the girl finds herself in situations where she's tempted by a big black cock, but where she keeps saying no even as her body betrays her, and where she gets annoyed or irritated when the man forgets or breaks any promise to pull out in time. Videos where the man is confident and assertive, and doesn't wait for her to take the initiative! I especially would like to see her think about this in subsequent episodes - going from "now I'm really going to stay faithful" to "maybe a quick kiss won't be so bad" to "don't pull my nipples - oooh!" to "at least wear a condom" to "you promised to pull out!". She loves it and there's no pain and crying (just like in existing videos) except she's annoyed she has to admit she did like it, and that she keeps viewing herself as "not that kind of girl".
Cheers
PS. I am absolutely not suggesting any violence or master-slave nonsense. Girls that are afraid or crying is a complete turnoff for me (and, based on existing videos, for Doberman too)! And please no mind-control either. The erotic core is the inner workings of the girl's mind, and how she keep struggling with her slutty body, that's all