At those words, I lost it and pushed her back onto the picnic table while I stood next to the table. I ran my hard cock up and down her wet slit and t...en I slowly eased it into her soaking pussy. I hadn’t had my cock inside a teenage vagina since…well…I was a teenager. It was so damn tight and hot and wet. Mindy grunted a little as it slid all the way into her little pussy and bottomed out against her cervix. God, it felt like heaven! I started fucking my cock in and out of her slow, while I. She looked so sweet lying there. She looked so peaceful, I didn’t want to disturb her. I grabbed my white bath robe and put it on over my pyjamas. Then I went wandering through the house.The house was still, silent, deserted. I felt like a ghost drifting through the living room. That line from that Christmas poem popped into my head, you know the one: “all through the house, not a creature was stirring, not even a mouse.”In the kitchen I poured myself a glass of water and leant against the sink.Part 2 - Sister is back from the bar.Sister was back. She just stood there, looking at us sitting on the couch, Kate's hand on my cock, rubbing away. Rock hard. Horny..… How long has she been there? Her chin dropped down and chest heaving. Was she disgusted or horny? Noticed that her nipples were hard."What the fuck, what the fuck are you guys talking about. Forget talk, what the fuck are you doing…" "Sis, well.." She just turned and walked away.. "Come, Steve, let's see if there is anything. I took her in my arms and walked to her bedroom.After reaching the bedroom removed her nighty & bra. I removed my shirt. As I cupped her 34 sized boobs from behind, I caressed her earlobes & neck with my lips. I pinched and squeezed her nipples & boobs a lot. My dick had started to poke her butts.Without wasting time, removed her petticoat & panty. The sight of watching a lady nude is amazing almost if you are seeing her in that way for the first time. She had nice butts and silky smooth.