Despite the fact that Nina and Alan are in a relationship, Alan does not need Nina's permission. They talked about it a long time ago. If Alan wants Serena, Nina does not mind. In occasion of yesterday - ask yourself, whom would you like more - your girlfriend or other girls? I think that Alan came to Nina later, because Serene was hurt and he did not have time to finish, but did not miss the chance and came to Nina.
Serena has menstruation. this is evident when nina massages it with a vibrator. she stopped the guest therefore. but in the bedroom Nina persuaded Serena to have sex with Alan. they laid a blanket and took napkins. but, apparently, Alan was tired for this day, because more than three times he had sex with Nina, he did not have enough strength for Serena. I think there is nothing wrong with this, because they pretty much had fun. I'm happy for them!
Nina is a fan of Star Wars. She has several T-shirts, two mugs, drawings and something else. Nina watched films about Star Wars in the last couple of days before her departure. And Jose has a black sweater with Darth Vader. I think that they are friends with Jose, because they have common interests.
It seems that Nina has recovered. I have not seen her scratch herself for a long time, plentifully smeared herself with creams, drank tablets and lay for a long time in the tub. If so, then I'm very happy for her!