Somebody that already knows you is the hardest to influence with pheromones because they already have you fixed in their minds. With that said, there are a few things to think about. The first is whether or not she is on birth control as that has an impact. More or less, birth control hormones convince the body it is pregnant so is not as receptive. Chikara or SoE are your better bets then. Otherwise, TE/NPA are good bets for sexual attraction