>>2384606You’d need to put a pillow or something underneath her lower back, so that her hips can stay angled up like that without any effort on either of your ends. Once you pull down her tights, keep her knees together and push her legs to the side, to rest on one of your shoulders. Her pussy won’t be as easy to reach into with her legs squeezed together like that, so unless she’s already really wet, it’ll take a moment to move aside her labia and find the right angle for entry. Once you do that, just start moving your hips, going a little deeper each time, and that should do it!