From Yoshimoto Biographies SP - Dec 25 ~ 27 2013
http://yamasakigifs.tumblr.com/ (for more Hōsei-san videos, GIFs, pics & more)
Amateur Sub (may contain inaccuracies but hope you enjoy anyway!). Just partial since I couldn't grasp a lot of the mumbled parts... It was tough to translate this so I'm really not sure about parts, like that lady with the panties... lol