Steering a sexual mix with TAC or P83 might prove useful - P83 lends itself to physical disinhibition, whilst TAC at doses of 20mcg and over helps promote a sense of playfulness/adventurousness/letting-go in the bedroom. So if she is in any way open to the idea, one or other of these might help bring it-on.
However, if she’s absolutely not turned-on by the idea of anal, no phero on this earth will make her change her mind - pheros will not overwhelm free will.
Another aspect is that there may be a trust/confidence thing going-on and something like the IH/Instant shine combo can help promote a closer/sharing/trusting but still feelgood mood that will help her be more open to desires/fantasies overall. Initially maybe best used without a sexual to help set the mood, then combined with something like TUTH and the above steering when the mood becomes more relaxed and determinedly sexual.
As this is your first post, if you start a thread in the Intro Forum, with a little more info about yourself and your wife, you will likely get more informed advice and you will get the $25 GC to help try a few things out.
Many women are like that - If you go straight for anal (or any number of more adventurous activities), the the “good girl” part of their mind will kick-in and turn you down flat but in the heat of mad/uninhibited passion, they may sudenly become very taken with the idea and absolutely love it. More its a matter of (erm.. metaphorically) slipping it-in at the right moment!
Androstenone always leads to rougher, more physical rather than sensual sex. So depending on your sexual style, I would recommend Ammo, TUTH, Instant Jerk, or something else high in Androstenone!