"You just relax. You'll enjoy it... well almost as much as I will. Just put your head between my legs again, but this time send your tongue in deep..."

Following instructions, you are soon looking at her most sensitive spot, and then applying your tongue to her tight depths. Almost immediately she climaxes massively with an explosion that almost knocks her out. This seems thrilling. You can control this senior lass, make her your love slave that reacts to your command...well at least for the moment. Well, later she may push you around, but for right now, you are the one in charge. You send your tongue in deeper. Again she goes over the top and you experience the joy of being the one in control. And again you shove your tongue in deeper...

It is only as you feel the warmth of her lips on your ears that you realize something is ... well wrong is not at all the word. In fact it feels so wonderful, but you have not been seeing anything for some time now, and you can tell things are different. However, you are enjoying sending Janet into convulsions. Why worry?
It is with her next climax that you realize your neck is damp, quite damp actually. How?... You recall something about a woman being able to pull another woman into her womb. Unbirth? Was that what it was called? Is that what is happening to you? For a moment you panic, but this has been fun so far, and she did promise you a great time. You get back to work stimulating her. Only now you find you can use your entire head to arouse her, and to tremendous effect.
Now your shoulders start to force their way into her and Janet responds like she does indeed believe bigger is better. It is her most massive climax to date.
As your breasts start to move inside, you find your own needs will be attended to, tho you are jealous that your little shutter in no way matches Janet's climax. However a moment later that jealousy is washed away by a flood of rapture.
You revive to find you no longer need to even try to force your way further into Janet. Now she is pulling you in, and there may be nothing you can do about it. Not that you want to. Her needy place sliding over your tender skin is highly stimulating to both parties. If she is getting the better of it, you are far from being left out.
Even so, you are rather surprised that as your hips move in, she is somehow able to caress your most sensitive spot, and to bring you to your most massive climax of all.
The rest is well worth experiencing, but your legs and feet slip in without anything to match what has gone before. Next you find yourself clutching legs to body in what is a surprisingly comfortable position in her womb. So comfortable that you are rapidly going to sleep. You barely have time to say "Thank you" before going to sleep with a smile.