Frank and my new friend

Hi, after my last post about what happened while Frank was away, I will tell you all what happened when he came home. I told him about seeing our old friend and having another woman join us and her being much younger and then showed him the note that she gave me. He looked at me and said that she was much younger than we agreed was our age group. I told him that she was really mature in her outlook and what she wanted in her sexual life. Frank said we could meet for a drink somewhere if I really wanted and to see how we got on so I made the call, very eagerly. We met a couple of days later and to say Frank was surprised at her maturity as we talked about sex and we invited her the following weekend. We settled her in and had a nice meal and relaxed in the sitting room where she sat next to Frank. I sat opposite and started touching myself as she turned to kiss him. Frank was very hesitant at first but he soon mellowed as I spread my legs to show him my naked pussy as I had no panties on. As things went on Frank was soon naked and getting a blowjob before she stripped and straddled his cock, lowering herself down slowly on my mans hard cock. She rode him nice and slow and it got me so wet. I went over and got behind her, fondled her breasts with one hand and the other went down to her pussy where she was soaking wet. She rode Frank and orgasmed twice before he filled her with his love juice. All this before we got to the bedroom!