Hi Arianna, welcome aboard.
First off, Dallas is notoriously known in the scene for giving probably the hardest spankings on video.
And believe me, the girls know it beforehand. He isn't a brute though. He takes breaks, and the spanking isn't nonstop for 5 minutes, that's what editing is for! Don't get too scared, not all girls cna take it that hard or enjoy it that hard.
After you start playing you may decide you enjoy playing hard with certain people, or never, or always. Or you may decide that a hairbrush spanking on the bare constitutes a hard spanking for you.
A certain percent of the girls featured on some websites do it for the money, some websites only use girls who are spankos in "real life" as well. Some use girls who've never been spanked - or who were spanked growing up.
The majority of the girls that model for Dallas are either well beaten spanking models (hehe) or girls who genuinely like hard spanking. Very few have never played that hard
And again, welcome!