My stepsister best friend gives me a blowjob while my sister was watching

My stepsister and her best friend are home alone with me, they decide to come to my room so we could have some fun. While we were smoking my sister's best friend told me she has always wanted to know what my cock tastes like. I told her she could go ahead and give me a blowjob, she did and it felt so good having my stepsister watch us all through the moment.