MATSUMURA Kaori presented a event including a spanking to her funs,according to this article (in Japanese) in the link below.
http://www.tokyo-sports.co.jp/entame/entertainment/514673/
In this meeting,Kaori spanked her fans with a baseballbat,and almost all of her fans are man...
but i found F/f spanking probably related to this topic on someone's tweeet.