So ? Just because he's friendly with the MC the one time they meet doesn't mean he's ready to share his gf.
Also Sienna is a good friend of Layla, as well as Elena...can't imagine how this would end well for the MC.
Everything in this game(other than picking a single girl and ignoring all the rest) is about "not ending well", everything is about creating friction/collision between the different girls.
Doesn't stop me wanting to fuck every girl just because i can.
I do think the way they've been portrayed hints that they would be down for a swing.
Isaiah comes on like typical red blooded male showing signs that he would like a go at either Layla or Elena.
And Sienna... she just gives "kinky girl" vibes...
I'm also hoping something happens between Sienna, her boyfriend and the MC.
It would be a choice for the player that could screw over the Layla, Layla/Elena paths.
The MC being a creep (choosing to watch Natasha (Zach's sister) and coach fucking, deciding to help Zach creep on the Girls' Locker Room at training camp, and watching Sienna and her bf) has only had repercussions so far with helping Zach.
Natasha did enjoy being watched but nothing came of it...
An interesting twist would be if Sienna
caught a glimpse of the MC watching the action.
It can potentially lead into an interesting conversation once we are back at school...
"You like to watch huh? Is that all you do or do you also like to play?"