I tricked my sister's best friend into giving me my first blowjob

I am home alone when my sister's best friend comes over. She decides to wait for my sister since she was not home. While waiting for my sister I begin to tease her about how I am sure she has never given a blowjob in her life. In other to prove me wrong she takes off her shirt leaving only her red bra and sucks my cock. It felt so good, I never imagined a better first-time blowjob.