Maybe a cream that contains pm? 

Or an estrogen cream like bio labs bi-est 5.0

Possibly the topical applications that lotus has mentions in project x starting on pages 480 (ish ) and higher, in conjunction with dhea. 

There is also creams that only contain Volufiline which will aid in fat production in the area is it applied to. 

Not sure if you would get the same rush or any growth without being on a full time routine. 

Hell maybe speak with a doctor and get a super low dose of hrt and do not use any anti androgen, just the mono therapy and you'll more than likely aee some more growth, slower than a full on HRT program containing hormones and anti androgen...  And I feel mono therapy is easier to stop than a full blown hrt program where that would most likely have to be slowly tapped off. 

Maybe get back on nbe routine that you used to get this far and only keep it at half what you were taking. 

All just food for thought.