This is a great picture, combining good art, romance, and a bit of humour to top it off.

Would it be a suitable candidate for the new "aijou" tag?

This is NOT questionable material. It's safe. *changes it*

comment #9705
Questionable is the default rating for any new upload (with extension, anyway, as it has no UI for ratings). You're supposed it to change to proper ratings whenever you browse through pics, it's generally more effective than trying to chase after every new upload you make to rate it.