Late last month when my older sister returned really drunk from a night out, I helped her to bed. Getting her undressed, I noticed how beautiful her pussy looked when her panties slipped to one side. Instead of covering her up, I moved her panties even further aside and couldn't help myself from touching her wet folds. Because she didn't move when I slid a finger along her pussy slit, I leaned over and kissed her sweet smelling vagina. Again she didn't move, so I spread her legs a little more and heard her murmur something. Moving my head back down, I kissed and tongued her pussy for about five minutes until I dared not go any further. Looking down at her, she definitely had a smile on her face, but I was too scared to chance anything else.
Back in my own room, about five minutes later my phone buzzed. Checking it, I saw it was my sister messaging me. The message said "Why did you stop, next time make me orgasm xxx".
We haven't had chance to take things much further as yet, but she and I have kissed sexually only a couple of days ago. I let her touch my pussy through my dress and panties as we kissed, and I was dying for her to feel my pussy flesh. Our parents returning back inside from the barbecue meant we couldn't, but then our parents have just told us they're going over to my moms sisters next week. They also told my sister to take care of me overnight when they're gone. Looking at me, my sister replied to my mom "I'm sure we'll take really good care of one another mom".
Now I can't wait taste forbidden fruit, and see if this seventeen year old can make her sister orgasm hard.