But what do you do instead? Her advice? So the idea of a woman penetrating another woman with her hand is often lost on mainstream media all together. She also recommends as much communication as possible so you can know when your receiving partner is ready for more and when they want you to stop moving. Katherin Winnick, sex coach and Deputy Editor at Letstalksex. There are also specially designed sex toys meant to mimic the look and feel of a fist, if you wanna get realistic with it.