You were watching Wendy do her yoga exercises on the mat, while you were on the treadmill, and wasn't even distracted by the amount of speed you were running because of that. However, after getting a good look at her butt, Wendy noticed, and pointed a finger at you while you looked back at the running meter.
You felt something happen to you, as the back of your own hair began to grow a bit down to your neck, but didn't feel it. Then, after getting off the treadmill, you head over to an exercise bike, and began paddling. Wendy pointed a spell at you again, but this time you felt your butt begin to expand. Then when you go over to the bench to do weight lifting, Wendy made you grow breasts after pointing to you a third time. Finally after the exercise, you leave to go take a shower, giving Wendy an idea.