Going to a party with friends, the young girl suddenly felt horny while drunk, so she went to the toilet to masturbate. When she came out, she met an old friend, which wouldn't have been a big deal if she hadn't mistaken the guy for... her husband.
The young man, knowing that his friend was very drunk, thought she was his wife and wanted to... have sex. His penis wasn't asleep, but instead of taking her back to the table, he took his "wife" to another place to do "something everyone knows"...