Hi there everyone, my penis skin seems to be a big part of my penis. When I pull my skin back tightly at the base it is about .3 inches less than it would be if i do not pull back. The skin on my penis seems pretty loose and when erect i can grip the skin on the middle of my penis and roll it above my glans. I think I can even roll the skin at my base up above my glans. Is this common? Thank you.