Heat : Use a towel that has been soaked in hot water, wrap it around his penis making sure the head is covered as well and hold it there for around 5 minutes. This will relax the tissues and get the blood flowing.
Stretch : Hold his penis just behind the head, pull it far away from your body. Keep it stretched like that for about 10 seconds before you slowly release it. Do the same but now try stretching his penis upwards, then downwards, right and left. Hold each position around 10 seconds. Start from the first direction and repeat the sequence 20 times. Have a strong grip, but just enough to still let the blood flow. Now, pull his penis as far from his body as you can. Hold it 1 minutes. Take a one minute break and continue stretching his penis upwards, downwards, right and left. Each time hold the position 30 seconds.
Milk : Make an ok sign with your thumb and forefinger. Hold the base of his penis and apply pressure. Now move your hand from the base towards the head. Repeat this milking motion 10-15 times and take a break for a minute and let the ok vibrate for 30 seconds. Repeat about 50 times.