She was very sexually adventurous, and if I wanted to try something, she was interested. She's the only woman I've been with that actually craved anal sex. We started playing with larger and larger objects, and I came really close to fisting her on several occasions. She liked being DPed with me and her vibrator. We eventually talked about threesomes. We were both interested in both MMF and MFF, but sadly the MFF's both fell apart for various reasons.
It was with her that I had an MMF threesome with me and one of my best friends, ( a story which I think I've told on here), and it eventually opened the door to an open relationship when she left to go to another school the next year.
She was a great girl, but eventually I realized the attraction was mainly sexual and she would drive me up a wall as a partner, and we decided to end the relationship.