It seems that you have an affinity for exagerated bodies. In my case, it's more about the psychology of it all, and seeing the trap assimilate the feminine role as much as possible.
Sturdier traps gives off the vibe that it was a matter of preference, that it could've gone either way. Meanwhile, traps that have tits, or other exclusively female features, lose trace of the male aspect completely; this is why I mostly dislike gender change scenarios. The happy middle is submission through resignation