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.
Bisexual women will be more interesting in bed than those who are attracted only to the opposite sex. Do not fixate only on a penis, but use in sex all its available variety.