Those nasty guys told Suguha that she wouldn't get fucked today if she didn't bring Asuna with her, so in order to avoid that, she lied to Asuna about where they were going and put her in a big predicament just to fulfill her lust. Asuna still has chances to escape while those guys are the only ones here, but she's too aroused seeing Suguha being played with like a toy, not realizing that in ten more minutes the other eight guys will finally be here and her chances of avoiding a night-long mindbreaking gangbang session will become absolute zero.