Frith broke the kiss to focus on what he was doing. He was grateful that she was orgasming, causing more of her body's natural lubrication. His arm slid along a little more. He was almost there. However, his fingers brushed the opening into her womb, but no further. Frith swore a little and decided to adjust both of them to reach his target.
Frith sat her down on the bed, using his free hand with slight difficulty to put both legs over his own shoulders so her feet would be behind his head. He pulled back a bit, getting more of the lubrication on his hand before thrusting his hand forward with more power. It seemed to have worked for his hand was now past the opening into her womb. The king felt his fingers brush the amniotic sac: his target.
The male began to try and remove it. However, in the process, he slashed it, causing it to break. On his fingers, he felt the amniotic fluid pouring out. Realizing what he had done, he moved his hand out before anything else could happen. He began to remove his arm, praying she wouldn't tighten her vagina too much from the orgasming.
Again, sorry for godmodding and vivid details xD