When you’ve hit a spontaneous urge in an interesting secluded location, or just happen to seek variety even in your own home, let’s consider the best positions available.
The most reliable standard is standing with her bending over at 90 degrees and her hands pushing against a wall or other hard object in front of her. This is available in a wide range of locations and scenarios and is the most flexible choice. You can even do this without any wall in front of her, just have her lean forward and grab her ankles, and grip your hands around her hips.
One sometimes seen in movies but isn’t so practical is her back against the wall and facing you and you holding her thighs to the side and entering. Because she is essentialy anchored off you, you do not really have much relative leverage to thrust in her, so while a bit exciting it doesn’t lend itself to prolonged intense banging.
With partially elevated surfaces, like a chair or couch, you can have her lean back on it, half sitting half lying, and enter from the front. Depending on the surface’s elevation this could be quite solidly relialble. Sitting down with her sitting in your lap and riding you is also standard, but typically it’s difficullt for her to have particularly fast or fine hip control here, so it’s one of those to do if you’re hot in the moment for each other near a chair.
For a creative option, if there is a dip or pit of some kind, you can aim for a piledriver type position. Have her go in it, lying down with her upper back at the very bottom and her hips elevated on a top edge of the pit facing up and out, and you stand on top and lean forward to fuck her. This has a good aggressive feel but she won’t be able to hold this position long as it can be a bit uncomfortable for her neck.