Super veins
I just thought that I would post a massively good exercise for bigger veins. I do this with the PJ but you can do it my hand also. Get your penis about 80% erect and do a kegel as hard as you can then clamp the pj at the base trapping more than average blood in the penis. You will immediately see the veins get much bigger. 5 sets of 60 seconds of these will do wonders.