It's always those things in the front that these guys at Corbin Fisher fuck with their dick when they do str8 porn for Corbin Fisher's Amateur College Sex. This was the first time that a woman's ass was fucked. The first to do it was Dixon. But, fucking a woman's ass has been done before but it stopped because the women don't douche :) for awhile. According to Dez's comment, the first to do it was Dawson that started in 2006. It is back again with Dixon.
Again NSFSGE means "Not Safe For Sensitive Gay Eyes"