Situation 805: “My date wants to bring his “friend” to our date”

Hey Guys! So wanted to ask what you would do in this situation?. So my date shook me yesterday when he said he was going to bring his best friend! That’s not the worst part! His best friend is a girl! I feel like I’m going into a job interview like this was a test or something. He says that this is perfect because there would be less pressure going out in a group than going out just the two of us. I already feel weird and uncomfortable with the whole thing. Who does that?! I feel like I have to impress both him and her its just awkward! Would you guys go on the date if it was you? What is he trying to say bringing his friend? What am I missing?