Anthony's instincts were telling him that this was a very, very bad idea in that way where, exactly as Zacharias had said, if it was just some randy couple in an alley, it didn't make any sense for it to be as strong as it evidently was. (But, of course, Anthony would go off on a tangent that maybe being in the... heat of the moment or what-have-you had made the spell stronger than intended and that maybe it was all right and they could just part ways.)
"Definitely not a couple," he paused, making a face, "having at it, I don't think."
That fact that he was sure, and he was sure that Zacharias was sure, that it was most definitely something other than a couple shagging almost had Anthony itching to leave. It sparked his sense of self-preservation which he'd admittedly had doubted existed very strongly until this entire mess had started. It wasn't that he was curious that kept him from leaving though, not completely. "And if it's not some couple, then why the spell?"