If not for the bond, there would have been no reason to exam the statement further. It makes perfect sense for someone like L. Lust and sex are distractions; Light agrees. Thankfully, nature has been kind enough to Light that he doesn't need medicine to fight urges, but L did. Deep down, he wonders if there's some disappointment to be found in the fact, but there's none. If he'd fallen prey to Misa or someone similar, perhaps it would have been more disappointing, but to want is human. Beneath it all, they're both human.

So, in knowing that something is wrong, of course Light has to find the piece that's out of place.

"We decided, together, to handle it that way."

Together. Only one word can really change and have it be significant. Try as he might, Light can see no reason to blame it on Watari if he hadn't been involved, not when L is the speaker. That means, while one of them did make the decision for the other, it wasn't the one most might assume. Why? Did Watari really have that much power over L? If so, their relationship might be different than Light surmised.

For a moment, Light weighs the risk of pointing out the difference. Loyalty isn't something L easily gives so confronting him about the odd decision will gain him nothing. For now, it's another footnote in the back of his mind.

"I don't think it's something you can imagine without experiencing it aside from knowing most people would probably not hold out long before eating. I didn't realize you were taking medicine to help fight it."

Light leans back on the couch.

"Does Niles know because he's involved or because he has a tendency toward perversion?"