A possible summary is:
The speaker tells a story of how he hired a woman from Craigslist to wrestle his friend as a prank for his bachelor party. The woman was much bigger and stronger than his friend and beat him up mercilessly, even putting a finger in his [ __ ] and sitting on his head. The speaker's friend was furious and uninvited him from the wedding, but his dad and mom found the story hilarious and even used it as a speech. The speaker says it was the best night of his life and worth losing a friend over.
Here are the key facts extracted from the text:
1. The speaker threw a bachelor party for his friend who was marrying his high school sweetheart and had never seen another woman naked before.
2. The speaker hired a woman from Craigslist who offered to wrestle naked for money. She was six feet tall and over 300 pounds.
3. The speaker surprised his friend with the woman and filmed the whole event. The woman beat up his friend, undressed him, and put a finger in his butt