Short, tall, mixed, or, matched, very few sexual positions lend themselves to a woman's orgasm from stroking. What those of us guys in the know do is to reach around and finger our partner during intercourse.

Those positions that do give a good chance for a woman's orgasm are:
* The Woman Superior
* The Missionary position in which the man rides high up so this penis rubs against her pieces parts more or less constantly
* The "X" or "Y" positions in which the couple recline on their sides facing each other. The difference between the two is in the placement of the legs

If you are relying upon lots and lots of stroking to build an arousal then you have the cart before the horse and I suggest doing a search on the Board using my name and the term: cart before. I have written about this several times and as recently as today.

I hope this is of help. Got questions?

The geometry of sex is different for each pair of people. Therefore, the "best" positions are different for each couple. There lots of positions shown various places on the net. One of my favorites that works with a man larger than I by a bit is to lay on my back with my knees over his hips as he lies on his side crosswise to me. This puts both partners in a position to play with any critical parts of the other or of self. I often do "extra" stimulation of my self and male partners kind of enjoy feeling the movement.

Try a bunch; you will find some good positions.