The whole room smelt of her perfume and as I lay back on her bed I started to wank my cock furiously and at the same time rubbing her panties over may...face. As I wanked I imagined her sensual old pussy grinding into my face and me licking her so deeply she was moaning with pleasure. I was so engrossed in my fantasy and my cock was ready to squirt my cum all over my stomach that I did not hear the door open until I heard a gasp and I looked up to see Jill standing in the doorway with a horrified. Sure enough she said, "I've been thinking of you all day baby. I almost didn't go tonight so we could have stayed home and made love. I'm horny too, but I smell baby. Let me take a shower."I grinned and said; "I don't care what you smell like sweetheart. I want you now just the way you are." I pushed her legs apart and was about to push her panties to one side when she said, "At least let me take my panties off." She lifted her hips as I pulled them down, noticing how wet the crotch band was,. Grandma looked over toward me asking if I was going up too, I had told her no that I slept in the car coming up so be up for a bit longer. With that grandma got up saying she’ll put another log on the fire then. Doing so standing there in front of the flames I got a appreciation of her body, the thin fabric of her robe did little being backlit by flames. If that wasn’t enough she turned rubbing her nipples explaining the fire always makes them hard, I didn’t say but mine too were well on their. I have no recollection of what she did with that cum, whether she wiped it or rubbed it in or just left it, it's gone now. What happened next was that I went down on her again despite her saying not to touch her, revenge was sweet.Afterwards she walked out of the bedroom and returned a few minutes later wearing the black nightdress and was the same person who had left the room earlier. It was late now and we decided to go to sleep, we held each other and kissed for a while before we both.