"Yes" I shyly replied. Jerking my head back by a handful of hair, "Yes, what?" he demanded. With his hands pushing down on my shoulders, I replied "Ye... sir." as I went to my knees. Being eye level with his crotch fired my passion. "You know what do." Mr Gates pointed out. I had always enjoyed pussy but this had me hotter then anything I'd ever done with chick. I unsnapped his trouser button and unzipped his fly. His cock strained against black boxers, eager to be released from it's confines.. I was feeling shame and humiliation, but I was also excited beyond belief. I worked up the courage to peek at what was going on and was surpised to see that a couple of the guys seated nearest me had their faces just inches from my pussy. The rest had bunched around closer and the shyest guy of the group was at the back constantly looking around, which I presumed was to keep look-out. This went on until I came. I remember convulsing to my orgasm and can only imagine how I must've looked slumped. I lay back and started stroking my breasts, slowly working my hand down to my pussy. I slid a finger in, I was so wet. Then just to tease, I slowly licked it. By now he had started to play with himself too. I watched his cock getting slowly stroked and moved my hand back down again. Another finger inside me, then another. I was so wet, my hands rubbed my breasts and I started to stroke my clit. I was rapidly heading towards one of my greatest ever orgasms. I could see he was getting close too;. His shorts were on the floor on this side of bed near Amy and he was so scared and embarrassed that he couldn’t even move to get his shorts. “Don’t tell mom or dad about this, I was just…” Alex finally tried to speak and save himself. “You were just…?” Amy teased, “You were just jerking off on your sister’s panties.” Amy didn’t seem angry or shocked. She was just laughing and teasing her brother. Alex felt a little relax and he got up hiding his cock and leaving those panties on the bed..