In my experience there is nothing like it. Its kind of just this tender beautiful erotic thing. You've had fun and she slept over. You half expect her to just be gone in the morning before you even are roused. Instead, you are awakened by the prickling tightening and warmth surrounding you... you stretch out in extacy feeling it happening and let the pressures inside you build. And maybe you bring yourself up to your elbows to watch it happen. The inevitable. What she's brought you to.

Such a naughty slippery pretty thing she's done to you.