I'm going to buy condoms the same week as I planned on asking this girl out
Are you buying condoms because you think the date will go really well?
I feel like we'd make an awesome couple in bed.
Good for you for being safe if you end up having sex. Having said that, it's a first date and you shouldn't assume it's going to end up in bed no matter how well it goes.
You don't know how good I am with girls. she's going to always remember me, once we lock eyes, it's all over. The only safe thing to do is to get ready.
If that's what you think go ahead and charm her with your magic but don't be so overconfident about it. Consider all possibilities.