"Who's the best brother ever?" I'm... the best... sister," she responded between laughs."What was that?" I asked and pushed the tickling up a notch."I...... am," she tried to say again."I didn't hear you correctly," I said as I tickled her even harder."Okay!... you are... the... best... brother." And who's going to be a good girl and give me some privacy tonight?" I... am. I'll leave... you two... alone." That's better." I said. "You are a good sister after all." I stopped tickling her and she was. Moving her hands down over her skirt Di raised up the hem exposing her stockings and suspenders then even higher to flash her matching thong. Di stroked at her pussy I want you to lick my pussy and tease my clit until I cum on your face then you can fuck me anyway you want. I got up from my desk and walked over. Di was still playing with herself, her fingers had disappeared underneath her wet thong. Mmmm that feels good but it will feel better when you do it Di purred. My cock twitched in my. "Oh fuck! Damn that's good. Eat that fat pussy mommy" I say as she eats my pussy up. "I’m gonna cum mommy.......I'm gonna cummmmmmmmmmmmm" I scream as she gave me an awesome orgasm. I squirted everywhere and she never let up. She just kept eating my pussy. I was squirming and shaking and my body was aroused beyond..... "Mommy move back let daddy get some of that good pussy. Let me see if it's as good as you say" says Derek. When she stands up and moves back he is standing over me, Dick on rock. “Beer or wine with your sushi?” she asked. She handed me a beer and we sat at her breakfast table to share our sushi. We sat enjoying the tasty sushi while catching up some more. The V in her dress was open more than in the restaurant showing most of her cleavage. Her nipples still poked through it. I couldn’t believe we’d just fucked. I’d thought of her sexually once in a while, but never expected to experience that. Laura told me about her early years out of college when she was beginning her.