Great original post. I am pleased to say that it has taken me a lifetime to discover and practice most of the techniques described (but only on one pussy), especially interesting to read I didn't make a unique discovery about the use of the chin. The only issue I would take is - what do you mean pre-menopausal. The more mature pussy is as great a delight, and in all the positions, missionary doggie, cowboy etc. One particular action I would recommend in the missionary position is to slowly kiss up an inner thigh, kiss the little valley between the top of the thigh and the outer lips and then repeat on the other side, missing out the vagina until your partner starts to urgently push her pelvis towards your mouth.