After I "punished" her by fucking her on my apartment balcony where anyone in neighboring units could see us, she clearly showed a thirst for more. But she also said she isn't bothered by strangers seeing her naked so she wants something different as well.

She responded well when I mentioned tying her up and gagging her. What tools or toys do you recommend for a bondage newb like me? What games or techniques have worked well for you in the past?