How do your balls feel when you haven’t ejaculated for a while? Mine feel harder and occasionally get a pulsating feeling down there. Some times it it won’t go away and I just have to empty them and cum.
Mine are feeling full and tight and heavy, and they absolutely adore the luscious sensation of bouncing gently on the mattress between my parted thighs, and are beginning to tingle inside as I lovingly stretch my uncut foreskin up & down, up & down .... Mmmmmmmm ......!!
I love that tingly feel you get as you edge closer to climax. My current favourite way to masturbate is watching some porn and sitting in a dining chair with my legs apart. I use a lubed up fleshlight and have it slide up and down my shaft. It’s a great feeling when you let yourself blow your load inside of it.
I usually tight my balls with a rubber band, so they hang down to pull them away, while I stroke. Sometimes I cross my legs tightly then my balls locate between my groins and bulge. In this situation, while I stroke I bang them rapidly. The result is ultimate enjoying. Try it you like it.
Mine change. When it’s warmer they hand loose and are more like the hacky sack you mention. I enjoy playing with them like that.
Another way to stretch the ball is to rope them tightly by a thread and then take the thread's end by your left hand from your back through your thighs and pull it backward while stroking. As far as your cock gets hard you can pull away more the thread, so, your cock and balls are in the opposite direction. Even if you pull the thread more your balls stretch enough to get close to your asshole and squeeze them more by your thighs. I do it while I stand on my knees. You feel unbelievable great just as you’re about to cum.