I don't know DenWa, the vibrations don't really add anything for me and eventually just make evrything numb. The strap-on or the cuccumber like dildo, well that's a whole different story. Of course they have to know what they're doing with it
Afterall, it's all about maximizing pleasure isn't it.
Actually, I do enjoy it as well. IMHO the best way is to enter your lady from behind and then apply it to her button and around the perimeter. This way her whole pubic bone vibrates.
The last time I was in a relationship I picked up this thing called the Happy Beaver. My strapped it on and turned my dick into a vibe!! Double your pleasure, it had a little tongue that went up to attack her button and another for her butt....mind you, it was tough peeling her off the ceiling!! hee hee