When Penn introduced faculty-student relations ban, most Ivies had already done the same [The Daily Pennsylvanian]

The flava:
A new policy banning all sexual relations between undergraduate students and faculty members at Penn went into effect on March 28. This restriction — which applies to academic advisors and program advisors as well — marks a shift from the previous rule that prohibited faculty-student sexual relations “during the period of the faculty-student relationship." 

The article:
http://www.thedp.com/article/2018/04/sexual-relations-assault-student-faculty-policy-ban-upenn-ivy-league-penn-philadelphia-education