It's pretty hot inside this sauna room, but that's what it supposed to be - making you sweat. And it's such a double take of the heat when in front of you is the girl who you worked with for taking photos in the whole day. Every shot you took from her, you have no idea how she can just only in her 18, but that's the enough age for her to let you think about more, and even she's exposing herself with just only her blue string bikini - her massive udders, her plump ass,... all of them are in your sight right now since there's only two of you. You let those thoughts only run through your mind while continue your work inside the sauna room. After capturing her drinking the water bottle, she suddenly hands it to in front of you:

"Wanna drink the rest? Man, it's so hot in here but it's the pleasure of sauna though"

Now she's making her move to be closer to you (at least in the working perspective), but it's time for your sexual desire to come up.