Cum slit

Mmmm just noticed that my cum slit really opens wide when I am about to shoot or squirt my spunk. When I am really excited and hold the skkn tightly back towards the base of my cock by my balls. Normally shoot tons of spunk. See my vids under "Funmenow" on adult friend finder. Will try to upload here too. Interested to know if any other men have this situation with their cum slits or had it licked by a woman