Topic: Breast frottage question

I would like to ask about images with breast frottage, assuming both are female and there is a breast frottage happening and both are fully clothed, should it be safe or questionable?
Im asking because I would like to suggest all images that appear with breast frottage should always be tagged with questionable, I mean, there is nothing innocent on breast frottage... I think? so I would like to recommend to add on the wiki page that all images with breast frottage should be rated questionable... if I am correct of course, what do you think?

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