How to ask a woman what she wants
If you haven't had an in-depth conversation with a partner about sex before, it can be nerve-racking. The simplest way is to ask in the heat of the moment. Call it dirty talk, if that makes it easier. Just put it out there while things are happening and get ready to adapt quickly. Just know she may be too preoccupied to answer in full.
A more intimate and comprehensive way is to make asking part of pillow talk. You're lying next to each other, the sweat is evaporating from your heaving bodies, and you ask her, "What would you like me to do next time?" This should begin a back-and-forth about preferences, during which you also will have the opportunity to share your interests.
The more open you are about what you want, the more comfortable she will feel. If she suggests something, ask for specifics: when and for how long are good places to start. Soon she'll be describing exactly what she wants you to do to her (and ideally in vivid detail). Talking about sex with a partner can sometimes be the best part of the entire activity. OK, second-best.