a variation on the missionary position. The naked, erect male roughly removes her underpants and lays her on the ground or bed; quickly with his hands he places the woman's legs over man's shoulders and mounts her without foreplay. This allows the deepest penetration of all. (The man is likely to find this very stimulating, and get some good orgasms, but he needs to be respectful and considerate of his partner's needs. She may just find vaginal thrusting too painful and stimulating, and need him to back off a little if he gets too excited.)
I had Croatian sex with Mary last night,it's a very satisfying position for both partners if they are flexible enough. This morning she complained with a smile that she was sore.