HI there, I was just reading about someone else holding the sperm in and I do somethong similar. I press with my fingers under my testiculus and when I come there is no sperm coming in. I believed is not good but after so many years I do not have any sign of problems. I do hold my sperm not because of deniying pleasure but because I do msturbate in different places and so......let's say it is usefull. Please let me know if it is dangerous for my health. Thanks