From same link:

KARATE GIRLS VS. RAPE TEAM: a really really wrong series of videos from the Soft On Demand company. Like practically everything else here, i've never seen it. but here's a description from the website NANPA'S PLACE:

"A warning - this tape isn't for everyone. Two very lovely ladies who also are black belts take on a challenge. They are to face 5 men in matches. The men are dressed only in boxers and a helmet. The ladies are dressed in Karate gear and are wearing light boxing gloves. The challenge: if the ladies outlast the men for 5 minutes, they win $100 for the first, $500 for the second, $1000 for the third and $2000 for the fourth. If they can outlast all 5, they will win $5000. If the men are able to strip them naked in that time, then its back to cave man days and the ladies are fair game for the whole community - a 20 person bukake/gang bang. The ladies are really tough fighers, but the men can smell sex. This is very close to rape, but it isn't entirely non-consensual. The ladies knew what they were getting into and while they were hoping not to be in the middle of a gang bang, it is clear at the end of the day that nobody is really hurt. A very distinctive tape."