It seems that most guys absolutely love to see a beautiful girl wearing a thong, and given his reaction whenever I wore a thong, my big brother was certainly no different. So that spawned an idea in my head...
It happened that on a Thursday, my two morning classes were cancelled: one professor was out sick all week with Chicken Pox, and another was headed for a conference presentation in Milwaukee. I still got up with my big brother that morning, and I eagerly took on the "dutiful wife" role and fixed breakfast for him, since he was the one going off to "work."
As he ate, I went to my bedroom and selected an outfit worthy of my surprise for him: platform heels, mini-skirt, thong, and halter top, all in black. Then I returned to the living room to find him gone; from the sounds, he was still in the bathroom, preparing for the day.
Fortunately, my plan worked well in terms of timing, as he was ready to leave about ten minutes earlier than usual. For me, that was absolutely perfect.
"Hey," I said softly, stepping into his bedroom. He looked up from putting a book into his backpack, and gazed upon me appreciatively. I twirled around, my short skirt flaring up and giving him a brief flash of my ass, the thong covering just enough to keep me legal if I were to step out on our narrow balcony.
"Planning on breaking hearts while I'm in class this morning?" my forbidden lover asked with a teasing smile.
"Actually," I replied, "I was planning on getting fucked before you leave. You have a few minutes, right?"
"Well, it certainly beats standing around on the BART platform for ten minutes or so."
I turned toward the nearest wall, standing as if I was about to be frisked by a police officer. My fraternal twin noticed my stance and immediately fell into the appropriate role, patting me down as if he actually was a police officer frisking a suspected criminal. I kept smiling to myself as he touched me β clearly a bit rougher than how an actual officer would frisk a suspect, but I definitely did not mind, especially when his hands lingered at my chest for a few moments.
He finally reached a hand up my skirt to cup my sex, and by then the crotch of my thong was already dampening. "I see a cavity search is in order here," my big brother said in a mock-threatening tone. I heard him unbuckle his belt and unzip his jeans, and I decided to change my role a bit.
"Please, officer, no! I'll be a good girl from now on! I'll obey all the laws! Please...!!!"