It sounds as if you are heading in the right direction mate, as I said it took me a couple of years of urging her on before anything happened, part of the process was joining a nudist club where we soon learnt of a underground swinging faction in the nudist club, the swinging group had a rule that they would not play with other married singles from the club to avoid any jalousie issues (both partners had to be swingers to join in with them), it did not take long for the word to get out that we had swung and started swinging and we were welcomed into the swinging group at the nudist club with open arms “and legs”.
You are progressing well getting her to jerk off her sister’s husband (her first touch of another guys cock) wait until you see your girlfriend “soon wife to be” opening her legs to let that cock inside her, unbelievable mate, it still turns me on even to this day 30 +years on.
