Possible nudity

My Drawing II class is going to be fun.  There are only nine people and we will have a live model to observe from each class.  Tuesday, we didn't have a human model available to draw from so my teacher brought in her dog.  It was just a little bit awesome.  She said that tomorrow we need to be on time for sure because we have our first live model.  She's modeled for classes before and is a fifty-some female bodybuilder.  Interesting, no?  Oh, and did I mention that there is a man in his sixties that is a student in my class?