Well if you haven't seen those wild machines that mechanically penetrate and pound on a female, this is something totally different. My boyfriend layed me on top of this speaker one night during sex and the loud music was awesome but what was even better was the vibration from the speaker.
My girlfriend came over last night and well I told her about it and we mounted one of her dildos to the speaker and hopped on... it was awesome.. the neighbors came over and told us to turn the music down... but instead they took some photos of us on the speaker.
http://www.Adultfuckfinder.net/landing.asp?afl=TYHOI hope you give this a try and enjoy it as much as we did...