I would say Chikara with a little bit of SOE (if you feel that the small amount of `none in the chikara will make you too alpha-male). You are already spending time with her and whatnot. Just remember that if she already knows your pheromone signature, they won't have an effect on her immediately most likely. A slightly more sexually powerful combo would be one spray of perception (`mones only), and a spray or two of chikara (again use a bit of SOE to dull down the alpha-ness if you must). Best of luck with these things, and remember, they are very very subtle, learn to read body language and you will definitely notice the power of `mones.
ManBeast