Fucking the tail pipe of an Opel Astra

In this video i am fucking the opel astra. it has a cute little exhaust pipe and it feels really good, when my wife pumps the gas pedal. you can hear her having fun while revving the engine with my cock in the exhaust pipe. whenever she presses the gas pedal hard, a bit of sooty exhaust condensation covers my dick and by balls. in the end i shoot my load into the tail pipe, but the exhaust fumes blow my cum right out again.