You have come to the clinic because you have been having trouble maintaining your erections to climax. You are feeling particularly shy and embarrassed about the matter, however your nurse quickly puts you at ease. She asks you to get your cock out and the demonstrate how you normally masturbate. Almost immediately she diagnoses the problem: your stroke technique is all wrong! You stroke too fast and are far too rough. She suggests you try a pocket pussy and offers to demonstrate how to use one on your cock. She gently lubes up your cock and slowly eases the pocket pussy onto it. The combination of her soothing voice and the snug, jerking sensation of the pocket pussy is absolute heaven! As she edges you she give you pointers and suggestions on how to jerk off with the pocket pussy. You can feel a big load building and she encourages you to cum into the pocket pussy with a countdown. You let loose a massive load, deep into the pocket pussy, with her expert hands milking every last drop from your balls.