She knows she cannot get away, that she is secured with no chance of escape. Yet she will try, she will strain against the rope.
Her body will twist and writhe, doing all it can to evade that constant vibration pressed so mercilessly to her sex.
What began as a simple flutter against her pussy has now become a tremor, one she cannot escape from, no matter how much she struggles.
Content created by: PleasureTorture
Image source from Orgasm and tickle fiesta