but there's no such danger, Maya and Josy don't stay over and don't do anything sexual anyway.
surely the main reason for the precedence of Bella's scene is "economical", DPC put a lot of effort in it so he wants as many players as possible to see it (of course among those interested in Bella)
then it becomes a more significant scene anyway, even without counting the sex, the DIKs see Bella leave (will this have consequences?) and Derek will eventually go to ask MC about how this might affect his relationship with Maya.
but beyond these two points is there more? is being or not being in a relationship with Bella at this point in the story more important than being in other relationships?
If the next chapter, now imminent, will give some answers about Bella's marriage that could also be the reason.