Should I? (image story in the description)

She sat on the edge, looking down into the water and trying to decide. The water in the heated pool was warm despite the cold night air and seemed to be calling her to get in. She looked at her jeans, sweater, and jacket, wondering what it would feel like to be submerged in the water in all she was wearing. She was intrigued and curious about such an experience. But was tonight the right time? Who would miss her from the party inside? She had come out here to get away from all the noise inside for a bit and wasn't sure if she wanted to rejoin the party anyway. A spontaneous dip in the pool would give her the perfect reason not to. And when would she get an opportunity like this again. And then there was the added excitement that she might get caught! But still, she hesitated. Her heart was racing with anticipation of what she might do. Finally, she made her decision. You decide, what did she do?