A "wild" event with Sam, the romantic? after the few statements I know from L&P, I doubt that the developer would describe such an event as "wild".
As "wild" I would describe an event that might take place this way. An Aiden task. Aiden forces Sophia to appear in an (incognito) table dance bar (once). After an exciting appearance in front of a larger audience, there should be a lap dance in a private area. Then "by chance" the whole group of painters and Aiden are present there. Sophia is in top form, dances, lets herself be touched and touches the boys themselves. All except Aiden (depending on the player's choice).
That would be a "hot" and "wild" heterosexual event for me without penetration. This is just speculation, but that's how it should be for me if it is to get the attribute "wild". And not a romantic event with Sam.