Sadistic Trainer

My friend takes me to these new crossfit classes at the gym. Pro: everyone in the class is totally hot. Con: it's so fucking hard and the trainer is an asshole! I want to get in shape, and it is a good workout. So when it gets too hard and I feel that I can't do any more, I fantasize about tying the trainer up, stripping down with my other class-mates and fucking in front of him. The workout is finished and I have a smile on my face thinking about torturing the sadistic trainer!