"According to the Kamasutra, this is position number forty-seven, Indrani. It demands certain acrobatic capacities, an all-round innate ability to keep your member as hard as possible while stretching it to his natural limit.
Using the weight of the woman to balance you out, the strength should mostly come from your hips and thighs.
That is why you can't really improvise with yoga.
Jacob realizes it, as if for the first time in his life, while his lower back is experiencing a sharp, searing pain that he can safely theorize will only increase within the next five to ten minutes.
Severely dehydrated, he now thinks that perhaps the best course of action would be for him to take a quick break, do some static stretching and maybe turn a few fresh oranges into juice. He remembers once when he tried to apply some ice or frozen peas on his red-swollen still erect penis and how that turned out. A night that Jacob still regularly recalls with dread. But then again, the things you do for love.
They nailed position thirty-three before that, The Swinging Monkey, not without some complications, and naively attempted position number twenty-two and twenty-five right before."