Yes, there is! Now, after you cum- there will be a refractionary period where your PC would have to get ready for the next erection (since you got it really tired having it cause an ejaculation). Reverse Kegels have this function- there are many threads of brothers saying that it really worked for them.
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http://www.mattersofsize.com/forum/...re-ejaculation-and-overall-penile-health.html (this is thread I believe can help you)
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http://www.mattersofsize.com/forum/members/doublelongdaddy/65-be-a-multi-orgasmic-male.html
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http://www.mattersofsize.com/forum/...ti-orgasmic-today.html?highlight=multi+orgasm (this is a thread where a member confirms the link above has worked for him)
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http://www.mattersofsize.com/forum/penis-enlargement-forum/1112-reversed-kegel-benefit.html (a really good link where DLD makes a great comment describing the usefulness of the RKs):
(copy-pasted from the last thread):
Reverse Kegeling benefits:
"The ability to remain erect after an erection
the ability to have male multiple orgasm
More intense orgasm
Stretching Benefits (See Below)"
Read all the threads and tell me if you have any questions. Me and the rest of the brothers will be around to answer!