Comparing the way Sasha and Shane kiss really is enlightening about Ilya's changing preferences,,, because Ilya's kiss with Sasha was hot, like there is no denying that - but that's the point. Sasha kissed Ilya and playfully tugged on his bottom lip because he was trying to be hot; he was trying to tempt Ilya. It was calculated, intentional, practiced. And that intentionality gives the entire thing an almost performative air,,, artificial.
Then compare this to ANY of Shane's kisses,,, Shane is earnest in everything he does, and that extends to how he kisses Ilya. It is pure desperation every time. He is CLINGING to Ilya at some points, devouring his face. This is not a calculated tease, nor a sensual prelude. This is Shane going If Your Tongue Is Not In My Mouth In The Next Five Seconds I Will Die. Shane's desire is so desperately obvious it's like a raw open wound. But, at the same time, it's almost,,, innocent. Simple.
What I'm saying is: fucking Shane gave Ilya a Madonna/Whore complex