Uh...
The corruption of Sophia is getting less and less logical. She just tongue-fucked the shit out of her own daughter completely out of the blue in a public changing room, mere hours after giving her own son a handjob. L&P's skipped so many logical steps to such debauchery that it's turning into a terrible porn script. There's hardly any logic in any of this. That also applies to the dialogues in this very scene.
Do we want to see spicy content? Sure! But like this? Well, not my cup of tea. Fact is, the entirety of part 02 has been completely braindead and turned this game into sexual encounter after sexual encounter with every single update. There's no logic in that. Just look at all that's happened in the past 24 hours (ingame), then compare it with the first 12 PD's. This path of corruption is anything, but certainly not "very logical" and "slow".
You're not following the plot dude... Sofia doesn't give Dylan a handjob because he was at Christina's party. I feel sorry for you . . .