Brianna reached over and put her hand on Jenna's. Like they were about to ride the rollercoaster rather than ride their brother's d**k. "You heard your slutty sisters," Amy said, "Now be a good big brother and give it to them." Like I'd needed any encouragement in the first place. I knelt down, my c**k aimed between the two of them. Their mixed scents filled my nose. Strong and sweet. I made a last minute decision and steered my d**k over into Jenna's sopping snatch. "Oh YES!" she cried, a bit of sibling rivalry seeping through. In the interest of being fair, I reached over and started stroking Brianna's p***y while my c**k bottomed out in Jenna's. "How's that?" Amy asked. "Incredible," all three of us said at the exact same moment. "There you go," Amy said, "Now remember to be fair

