Amazzed,
You are absolutely right - I'm here as here fantasy bf - nothing more. I provide the raw sexual pleasure she craves and isn't getting now. I have no interest in stealing her from him - in fact I try to respectfully enhance their relationship.
Update - had a 2nd session with her Sunday afternoon at the same time as the initial session. She was comfortable and much more uninhibited and gave me a fantastic oral worshipping of my cock - very verbal with her as she played with her new pleasure toy. I gave her pussy a top shelf tongue lashing until she came and shook. I then gave her pussy a break with a nice breast massage/sucking and light biting to get her on edge before mounting her. I again wore a condum as requested and really worked her deep. I kept her on her back to really stretch her for my bigger size before I gave her long and slow strokes to let her feel the whole shaft. I then began to vary the speed - a hard fast one followed by a long slow one, two hard ones/two slow ones ect until she came with an internal orgasm which only a big cock can give. After she came back to earth I put her ankles up and pounded her until she screamed from the final orgasm - begged me to stop. She was completely out of energy on the bed so I took off the condum and stroked myself to shoot all over her breasts...a fantastic session.
She has been texting a lot since - I am pushing for a weekday afternoon meeting this week while her kid is at school. Really want to get her during the day on a regular basis plus Sunday afternoons as it cements my role as her exclusive lover.
We didn't talk at all about her hubby - he may be too busy to realize the transition is occurring or he's begun to accept the situation.
Ideally he will stay in the backround and let me take care of her needs.
Stay tuned.