Sophia/Ellie (Short) you mean the panties sniffing part when Sophia takes the shower or something else (we haven't seen in the teaser yet)?
As for what could happen in the Logan route, he usually never spoils the main action with the teasers, so the kiss should be not the main "highlight" of the scene. Even because I suspect that this time the teasers **could** be more or less aligned with the % progress, given the probable overall limited number of renders (just a non-impossible speculation as I said in a previous post). So it could be that at ~60% they are are kissing and there is still room for other things to happen.
So, since we are re-hashing themes, it could be something similar or along the lines to what happened for Vicky:
At some point they kiss in front of the guys, maybe Ellie grabs her boobs and expose them a little bit. Sophia is turned on, let her do for a moment and then retract. The guys at this point are a turned on, and either they show it under the towel or they proudly remove them.
Sophia is not comfortable and excuses herself out of the sauna for a moment claiming it's too hot. Usual introspection moment follows outside the sauna, thinking about how wrong but how good it felt and how what the guys showed turned her on.
At some point she gathers the courage to go back and she, as in Vicky's, witnesses Ellie pleasuring Logan with a HJ or something
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Again the choice would be to stay and peek or to leave. If she stays and watch being turned on (without being seen) at some point behind her appears Tyler, who in the meantime went out as well. He catches her peeking and we have another theme dear to L&P,
groping behind the door without being noticed.
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I mean not exactly like that but that kind of situation. So Tyler could make his move groping Sophia (player's choice to continue) and that could lead to a HJ à la Dylan in the pool or even more (e.g. fingering to continue where they left, but definitely no sex).
The variant could be that Sophia witness Ellie doing business with the both of them, and we'll have a situation similar to Christine's BJ in the last event, with Sophia taking the role of Ellie.
So in the end with this kind of event organization, you'll have some lesbian action and some hetero action, for both of them (or just Ellie). And that justifies the animation(s).
What I see more difficult to happen seeing how L&P structures his erotic moments (at least for Sophia), is a straight-to-action thing in which e.g. they kiss, the guys get aroused and the girls have to help them with their problem because it's their fault they have an erection (classic porn trope). He usually try to create a different type of situation.