Jealousy and excitement

After the incredible orgasm she gave me on that first evening, I half expected to spend the night with her and do it again a couple of times but she told me she had to wake up early in the morning and needed to sleep alone, so I left. The next day I couldn't take my mind off her. I phoned her a couple of times but she didn't answer. I couldn't help trying to imagine what she was up to and whom she might be seeing. It was totally absurd, I had known her for less than 24 hours and I was feeling a ping of jealousy, as if she was dating someone else. In fact she was, so I learned later. She was dating one of her regular lovers. It took me nearly a week to spend another evening with her. When I picked her up she was stunningly dressed, with a short skirt and boots showing her shapely legs. Her breasts were bulging under a nice sweater and I became hard a couple of times just imagining their outline. We had dinner in a nice and quiet restaurant and I started asking her rather general questions about her, about her relations and her love life. She answered also in a very general way and as soon as I tried to push things a little further she looked at me with a humorous smile telling me to mind my own business. I was getting more and more jealous but I didn't want to put her off so I changed the subject.
One we went back to her place, we didn't even kiss, she opened my fly and sucked my dry before offering me a drink.
Then she let me undress her and eat her hairy pussy till she started dripping in my mouth. Then I got her again on all fours, let her expertly put the condom on me and started pounding her again. But although my cock was stiff I couldn't feel her loose pussy well enough. Then I took a chance to try what I had been fantasizing about for a week, I took it out and put the tip of it on her asshole. I was afraid she would stop me from going further as almost all the women did when I tried it with them. At first, she didn't move. Then to my surprise she pushed her big butt backwards and I saw my cock effortlessly entering all the way into her ass.