My method by request:

I use a homemade gaff, which you can see how to make on YouTube. Basically you cut the elastic band out of the top of a pair of pantyhose. Then you take a tube sock and cut off the top (where it fits around your calf). Take the elastic band from the pantyhose and run it through the cut sock. With the sock in the middle of the elastic band, put your legs through the now visible holes of the band. Pull everything up to just below your penis. From here, this is how I tuck:

With one hand, I push my penis back as far as I can from the front. With the other hand, I reach behind and grab my penis, keeping it pulled back as far as I can and in between my balls (one on each side of my penis). Once I’m pulled back pretty far and have split the boys, I’ll pull up on my penis while maintaining keeping it pulled back. While using that hand to keep everything I’ve just done in place, I use my other hand to start pulling up my gaff, alternating between the front and back. As you pull the elastic band between your butt cheeks like a thong, the sock will start to tighten everything in place. Once I have my gaff and everything in place, I use a small hair tie in the back (just above my crack) to cinch the two sides between my butt cheeks closer together. I’ve found that if you don’t tie this part, the gaff gets loose and everything starts falling out. I’ve also found that by splitting the boys with your penis, they will naturally go up inside of you once the sock tightens down. The sock is also key. The smaller you cut the sock, the tighter the tuck will be, so experiment with different sizes. It would say 3 inches of the top part of the sock is a good size for a good, comfortable tuck. I personally have various sizes depending on how tight I want my tuck to be.

This method does take some getting used to. It may be uncomfortable at first, but trust me, you’ll get used to it. That’s it!! That’s my method.