My Mother and Sister are Swingers!!!

Dad is away on business again for a week and this time he told me I'm the man of the house while he's gone. Dad made me promise to do all my chores and to make sure my Mom and Sister behaved themselves. I didn't think I'd have a problem until last night. My Mom and my Sister said they were leaving for a church meeting at 10 o'clock at night! And they were both wearing long trench coats. I knew something was up so I followed them in my car. They definitely didn't go to church, they went to a swingers club!!! I went inside and confronted them and they just laughed at me. I asked my Mom what Dad would think and she said she didn't care. I couldn't believe what was happening! Then My Mom asked me if I wanted to get my dick sucked. I said yes and my Mother and Sister just jumped on me and started sucking! It was crazy, but I couldn't stop. I fucked my Mother and my Sister right there in the club. I came on my Mom's face then she told me to get the fuck out. She said they still had to fuck a bunch more guys before they left. I grabbed my clothes and rushed out of there. I sure hope Dad doesn't find out, but if I didn't know about my Mom and Sister, maybe he's a swinger too!