Our minds cannot be broken, because it's flexible, so we just twist 'em to add a little drama to ordinary life !!! Twisted/Psychological/Dark Stories is life~ ahhh the feels
Even though she's not an old adult she's an adult non the less. What 2 consenting adults do is of no one's buisness unless your the parents. Regardless of age they will always see you as "their child" even when you youself are of senior age. My parents are an example of that+.
http://www.mangago.zone/read-manga/doutei_doudeshou/mf/v01/c003/34/
Or this
http://www.mangago.zone/read-manga/doutei_doudeshou/mf/v01/c002/34/
both are illustration from Free!
You can search dj from it
Thank you