I think I found the trap.....I looked it up on wikipedia "WapÅrif is a maintenance technician for the Simoun aboard the Arcus Prima. He went to the Spring under the temple of Tempus Spatium two years before the beginning of the series, and chose to become male. He had a crush on Floe, but did not become close because she was a Sibylla. Once he got over her, Floe told him to say they were lovers. WapÅrif is devoutly religious, and develops a close relationship with Morinas." Apparently, the one on the left is actually man....or was....or became one......I'm confused. <_<;
Although she decided to become male it A> isn't an instant process, basically her body will change itself from female to male. throughout the show it was commented on how her boobs were getting smaller but she still had boobs and presumably her genitals are also going through some odd changes as they change too. So trap that means biologically male though appearing female does not fit since the large boobs are pretty obvious that she hasn't reached male state yet. Futanari or Newhalf (as it is also and contradictorily labeled fit much better.)