So there is no threesome
EDIT
Well, I just checked the tags and those who were expecting a SophiexBree trio don't have any hope.
I guess that the devs have decided that a threesome will not include the girls having any interaction with eachother. There's the planned Group Sex tag, hence I would wager there is something planned where the MC will have a sexual encounter with at least more than one girl at the same time. The only way that would line up is without the girls touching or kissing or any of that.
So I would say a threesome is not impossible just yet, just maybe not of the variety some would like to see.
If your point was 'bring on the girls experimenting with the MC and with other girls while on art camp! We want it!' then yes, I'm right there with you. Sure, they can make it optional for those that don't like that stuff, but I'm not on F95 for just watching the 'vanilla' stuff, gimme some degeneracy already!