My sister and I are very close. Closer than the average siblings. We play dress up and love to compare our breasts and see each other in super sexy lingerie and things. Today we were trying to have some fun girl time together and stayed home to play dress up in our sexy pin up style dresses and high heels. We were having a great time until we caught our pervy little brother peeking on us. He should know better than to be peeking at his very own sisters, what's wrong with him? We begin to tease him and seduce him by letting him see more of our bodies , but then I saw the bulge in his pants. I am positive that he is still a virgin so I humiliate him about that and explain to him that he needs to go ahead and accept his fate of being a virgin forever because no girl is ever going to want a cock as tiny as his. I tease him and laugh at him while I giggle about it with my sexy sissy the entire time.  I couldn't help but to notice how small his dick was. I didn't cut him any slack telling him all about it either. I even have him unzip his pants and pull it out. It is so funny to tease him and make him stroke that tiny thing. I have him stroke until I can tell he is just about to cum and then make him stop. Toying with him is SO fun and he can't ever do anything because if he did me and sissy will tell mom! I edge him and tease him ( YOU POV ) until we both count him down for a cum countdown just for our entertainment.