Board Thread:Questions and Answers/@comment-35301431-20131001180321/@comment-3467648-20140519195906

Maybe. Also we need to consider the PV as well. In some cases the lyrics aren't so suggestive, but when watched along with the PV, the interpretation an nature may change.

An example would be mothy's Plateu no Hana's. I don't think he  labeled it as an R-18 video due  the death of a child, as he has written much worse things *cough* Ourin no Honoo*cough*. I think the main reason was  the mild suggestive nature of the artwork used on the PV (Mikulia's nude scene, that flower looks too yonic >.>).