I've completed my PE journey, from 5.25" to 7.25" length, 5" girth base to 6.75" girth base. Quality improved too, rock hard for hours and (almost) complete orgasm control. Now I'm interested in your advice on part 3 of my sexual journey.

Part 1: learning to use angles (my hips and her hips) to reach max depth in p-spot ✅ [done]

Part 2: increase my hip joints flexibility so I can actually thrust in and out in different sex positions ✅ [done] (on my way to learning the front and side splits!)

Part 3: learning and gathering tools to effortlessly go balls-deep 🤔. Here's where I'm at, my wife is skilled and has good lower back mobility, so she can arch her back on the pillow in missionary to line my cock up vertically so my body weight effortlessly presses my cock all the way into her. We are working on other positions still. But her friend has rods in her back and can't achieve the same positions. During our multi-hour sex sessions, I'm pushing wife's friend (and me) sliding all over the bed (she insists on balls-deep as much as possible) and I need an idea to reduce the effort. Do any of you use leggings with performance grip pads or something? What's your best balls-deep position that isn't cow-girl? Using my new big dick has been a lot of work 😅 But it's fun to take a break and have a guilt-free sugary snack.