In fact, it's a proven fact. No one would refuse such a training session on boxing, see how she was furiously sucking his big dick, and she seems to be enjoying it as well. In general I think that such a fuck will be a norm for them now, because they are unlikely to stop at the received emotions, they will want more and more, and there more and more, we just have to watch.
Mawers of the experienced trainer apparently did not give rest to the sexy lady, made fun of herself to start with, and then arranged a merry-go-round fuck showing how to do it and how deep it is necessary.