Beatrice dominates Katy in every sense of the word. Why? Because she's a hot blonde with bigger tits that looks like she could break Katy in two.
. But doesn't she rather look a bit overweight, and not as quick and agile as Katy? She's shorter and not as trained as Katy.
Yeah, but she's overweight in all the right places. Katy's going to feel how overweight when Beatrice's heavy juggs flatten and crush Katy's with no problem. 
She's a bigger stronger looking girl. Katy is too scrawny for her to make a difference.
I know, Beatrice is big - Katy is strong though, you can see it in many pics ⬇ and calling her 'scrawny' seems like underestimating her a lot...the only danger are those enormous boobs of Beatrice I think, in some pics they look murderous ⬇, but that clash is only the pre-fight!