To a couple of friends, male and female, encountered on the street, I said, 'If you give each other an oil massage and make your male friend ejaculate, I'll give you 1 million yen.' Then I have them accept the challenge. They change into paper bras and paper panties to start the oil massage! The girl who wants the prize money is more proactive, trying to make her male friend ejaculate. Perhaps due to nervousness, the boy who can't ejaculate becomes aroused and ends up inserting himself!
