Years back me and 3 of my friends were over and my girlfriend at the time after drinking and partying asked us if she got her tits out if we would probably get hard. We'll she had big perfect shaped tits and she had them out right in front of all of us she asked if we are hard nobody said anything so she told us to pull out are cocks and show her. With her blackmailing all of us were all pulled out are cocks and we all were rock hard she started playing with her big tits and I started stroking my cock my 3 friends all started stroking there cocks my girl said wow there all different you have different sizes and the shape are different too she explained that one is curved straight back to his stomach and one is curved off to the right side and I was sticking straight up she explained each of your cocks is different in length and girth one friend was very short but thick and one that was skinny was longer and she then measured us we were from 4 inches long to 6 inches long and 8 inches long. By now her panties are off and she is rubbing her pussy. We where teenagers and one by one each of us started to cum she says look at how much cum you shoot and each of us had different amounts of cum shooting or dripping out.