I love when the cum is shared to be used a lube for the other cock(s). Aside from being insanely hot, I find it such a great act of true bonding between men. I wish more men would do this! (and record it and upload it for all of us to enjoy!)
Squirting cocks really excite me - I immediately get a hard-on when I see young guys' cocks so hard and I always like to jerk off until my cock twitches and unloads.