Update was... whelming? There is only so much you can do on the fuckfest poolparty, but it was done as best as it could?
Anthony is a servicable whatever dilf for the niche audience who wants a dilf, but I'm not seeing much potential in him.
Billy was surprisingly restrained, considering he is the host of the event he hyped for ages ago. He doesn't have presence, charisma, he entirely hinges on his "uncle" and Ivy. I suspect Eva doesn't know what to do with him. He is always second fiddle. He was a best bet for a Ivy love interest that isn't the MC. Unless he pulls something spectacular on the third day, he is just a plot device.
Mike could be seduced or called out to confess to his girlfriend. He is still on hold. We should have seen him and Ivy fucking. Else, he may get a bit of spotlight if he and hopefully Gillian are found out and Ian and Lena can freak out.
Good Jess has relationship issues, which is very much the setup to have her break off and either fall off or give decent Ian a chance. Ivy implied to do something about it, so her drugging Jess on the third day is possible. By contrast, Bad Jess asks Lena about Ian. Kind of ironic how Good Jess may regress while Bad Jess can progress.
The other girl was just an extra, but Zarina is a bit of a dark hose. My hope for the legendary Yuri NTR goes on, the catfighting was the most pleasant sideplot throughout the entire chapter.