Pipe Fixing Gone Wrong! He Doesn’t Expect My Cock

I called a plumber to check my water pipe, but in reality I tricked him and wanted to insert him my pipe with my 11-inch strapon. After he lay down under the sink to check my water pipe, I got wet and started playing with myself. Soon I quickly went into the bedroom, put on my strapon, and surprised him with it while he was searching for his tools. He get shocked when he realized that there is a cock behind him touching.