I just think Martika is getting used to the cameras still. Martina took some time to loosen up for example. At first they were shy. By the end of the month she was having sex with nipple clamps and handcuffs. I'd give her a month.
The one thing about these girls is that it seems like they have no shortage of men to hook up with. This might be a mixed bag as you are going to get guys like last night not wanting to have sex on cam and other times you'll get a horny guy to say F it, I just want to get laid. Vanessa had to have gotten a warning last night. If it keeps up, she's gotta go.