[The only one of its kind in the world, the modified exercise bike, has been powered up!] It has evolved to include a powerful 6-cylinder electric vibrator, delivering 42,000 revolutions per minute, making it an incredibly intense orgasmic vibration! Four big-assed housewives with hips over 90cm who came to try out the high-value monitor experience are sent flying into unknown pleasure zones with a raging orgasmic rush! They can't stand it anymore, and they pee in their back-arching convulsions. And just when they give up, they're attacked from behind, with a massive creampie in a back-piston fuck that makes their asses shake violently!