Senketsu is a divine dress that can donate an incredible power, but there is a concept to understand to have that power: you have to accept the dress if you wanna really wear it! no shame, even if you show some skin otherwise it will suck all your bl00d and your energies.

Matoi can't accept Senketsu at first she feels so emberased that she finishes to go down exhausted, but in the moment you start to attack her tits she understands she needs senketsu, revealing the true power of the divine dress. Good luck surviving that power!