I'd approach him and watch that big cock pulsing and twitching. I'd be amazed not only by the cock, but also by the huge sack bouncing up and down with each twitch. I'd grab them, cupping his nuts with one hand, and grabbing his dick with the other. I'd feel it twitch in my hand along with his nuts bouncing up and down. Time for me to suck them four times. Slowly and surely to feel every single throb of his huge cock and balls, cupping the latter when I take care of the former and the other way around. I hear some good moans coming from him, time for me to whip mine out, a big, fat, curved, veiny, uncut meat pulsating lustfully. Time for me to rub it with his, feel our cocks twitch and throb as our big nuts gently caress each other. We both moan with desire for climax, so I move my pelvis up and down while grabbing our dicks with my right hand and touch our sacks with my left index finger, stimulating us repeatedly until the white fireworks fly off and explode.