As the new girl on the swimming team, it's very important that I do whatever our coach wants. After all, he knows better. That's why I don't mind it when he slips his hard cock inside my pussy when I'm stretching. I'm sure that's going to relax my muscles. He also likes it when I stroke his dick when we are underwater, and he grabs my tits whenever he's close to me, but I'm sure it's all part of the training. The other girls have been doing this with him way longer than I have, and they are great swimmers. So hey, if he's going to train me so my body can be at its best, it's only fair if he also gets to use it however he wants.