Unwanted fingering of my girlfriend's anus by a stranger

A close friend of my girlfriend came to our house. He was an old man with a huge cock, which he loved to show off. He didn't care who was around, and he decided to take advantage of the situation by fingering my girlfriend's anus. She was shocked and didn't know what to do. I watched as he continued to pleasure her in ways she had never experienced before. Despite her initial shock, she began to enjoy the sensation and even encouraged him to continue. The sight of my girlfriend being pleasured in such a way was incredibly arousing. I couldn't help but get excited as I watched her moaning in pleasure. The old man continued to explore her tight hole, taking his time to make her experience as pleasurable as possible. The sight of my girlfriend being taken in such a way was a sight to behold.