You can see she's open to the experience, for the novelty and a bit of cash at the end... but she's not super confident or comfortable. You can see that in the sex video that follows this (link in comments below); she seems willing enough, and everything is going well enough, but she's not in the right frame of mind to let go and enjoy it. It's a shame, but she's beautiful to look upon.
"Teresa", she said. Her German is pretty basic. From her accent, I presume she's a North American university student or backpacker (although backpackers probably wouldn't bring such nice lingerie with them).