I've had the G5 GBM Professional Portable Massager: http://www.promedproducts.com/Merch...Product_Code=GBM-120B&Category_Code=Massagers for a couple years, but reading people's methods of masturbating gave me ideas on how to use it. I have a book called "Acupressure for Lovers" by Michael Reed Gach. Here's some information about it: http://www.amazon.com/exec/obidos/t...104-2841764-1480760?v=glance&s=books&n=507846 I used the G5 GBM Professional Portable Massager to apply pressure to my various acupressure points. Wow! I sure had some powerful orgasms!