From - The Ananga Ranga
Purushayitabandha is the reverse of what men usually practise. In this case the man lies upon his back, draws his wife upon him and enjoys her. It is especially useful when he, being exhausted, is no longer capable of muscular exertion, and when she is ungratified, being still full of the water of love. The wife must, therefore, place her husband supine upon the bed or carpet, mount upon his person, and satisfy her desires. Of this form of congress there are three subdivisions: ...
#3 Utthita-uttana-bandha. The wife, whose passion has not been gratified by previous copulation, should make her husband lie upon his back, and sitting cross-legged upon his thighs, should seize his Linga, effect insertion, and move her waist up and down, advancing and retiring; she will derive great comfort from this process.
HER
HIM