My first time... fucked with StrapOn

My girlfriend had promised me to organise a horny guy to give me a real hard time. Beaming with joy, I lay on my bed and waited. But suddenly she stood there alone in front of me and told me that unfortunately the guy couldn't come. She came closer, lifted her dress and a strapon came out. She wanted to do me with it as compensation. I'm curious to see how it feels and how well she can handle the artificial cock.