Sister Needs To Practice Giving Head Before Her Date

Hey Bro! So, I have a date tonight, and I'm really nervous. I really like this guy and I want to make a good impression. Would you help me out with picking a dress? I'd really appreciate your feedback. Here, I'll try on these three dresses and you let me know what you think. Dude, Bro! Are you getting hard? Well, I was kind of thinking that if the date goes well I might try to impress my date by sucking his cock. But the problem is, I've never given head before. You've had some experience, right? That's what I thought. What would you say to me trying it out on you and you can give me some pointers?