7x5.5: When I get hard, my head only reaches its full size with some sort of touch to it, be it my hand/someone elses hand/a vagina. As soon as I let go, a tiny bit of knob size goes, but I kegel to help it retain size. However, if I am to lay back and completely stop touching my cock, my knob will quite suddenly shrink quite severely, becoming the same size as it is when flaccid, if not smaller. I can kegel blood in, and it retains slight size, but after a few moments the battle is lost and I am lieing there with a big hard on, but a small knob. Watching it shrink as a lie back in quite amazing, and frustrating. Anyone else experience this? I don't know if I get less blood circulating at this angle, or if I lose sensation due to lack of touch (I can keep my full size when lieing down if I am holding my cock). What do you think the deal is?