From - The Ananga Ranga
Uttana-bandha (i.e., supine posture) is the great division so-called by men well versed in the Art of Love, when a woman lies upon her back, and her husband sits close to her upon his hams. But is this all that can be said of it? No! no! there are eleven sub-divisions: ...
#5 Smarachakrasana, or the position of the Kama-wheel, a mode very much enjoyed by the voluptuary. In this form, the husband sits between the legs of his wife, extends his arms on both sides of her as far as he can, and thus enjoys her.
HER
HIM