I have been able to Hold back ejaculating for some years. I still Orgasam pleasurably, usually depending on the technique I use. There is the feeling of Two muscle groups. One feels like you are holding a sphincter at the tip and the other at the base. The sphincter at the base of the penis is usually the way to go. If I masterbate for an extended period I still spill precome, and when I orgasan I usually spill my seed without any force, but I am usually unable to hold it all back. The main upside I have come across is masterbating in bed or where ever else I feel like without any mess. Occasionally I feel a slight ache in each testis, and I can usually feel a swollen area at the bottom of each testis, assumably where the sperm is retained. This technique has become the norm and I use it 99% of the time. I have no experience with intercorse.