what is erect stretching? where is one supposed to grip the erect penis? isn't this exercise dangerous? and,most important, if I stretch flaccid but with a very slight starting erection is it harmful for my penis?I ask 'cause I noticed that everytime I try to stretch it become a bit more full and tight , hope I explained well..is stretching with this very little starting erection harmful? and, last question : if I stretch randomly few times in the day without warming up and with few seconds pulling is this bad,neutral or good to my penis?