When a lovely lady holds about a half-glass worth of champagne in her mouth, and proceeds to suck the member of her gentleman friend while her mouth is full of the bubbly liquid.
The motion of her tongue and bubbles from the champers give the gent a sensation similar to having his dick plonked in a bubblebath
The ultimate in decadence
Corrr, this well sexy posh bird gave my dick a proper sexy BJ last night, called it a "Champagne Bubblebath". Used a bottle of bubbly, it felt like my cock was in a jacuzzi.