Minako is definitely one who is better to befriend than take by force for two reasons: First, her two bodyguards almost never leave her alone for very long. And second, she doesn't even really need them as she is more than powerful enough on her own. The problem with the other side is that she is very difficult to coerce into bondage and may take several attempts, but will eventually allow it. Her body features are well-rounded, allowing her to be tied in several different positions based on personal preference, just so long as her hair isn't messed with. Secretly, her feet are her weak spots, so be ready to tickle if desired. Give her a gag that emphasizes her eyes.