In both cases the girls were 15; only a few months away from being legal age in most cases (although the laws here are slightly different when it's a student-teacher relationship). In both cases, the girls were certainly up for it, as well. The only real problems that I can see are that there were trust issues here; the first woman deceived the girl, and the second was in a position of authority. However, I don't really see jail time as appropriate; 15-year-olds are old enough to know what they're doing, and most British girls are do it a long time before they reach the age of consent. The punishment for the transsexual woman/man was the most appropriate one.