cooter rooter
An individual who facilitates the expanding of a vagina (a.k.a. cooter). Expansion may occur through the use of any object, preferably an erect penis, an enclosed fist, or three or more fingers can be used. A twisting motion is best along with rapid insertion.
She was a little tight at first, but after a visit from my local cooter rooter, she opened up like a blossoming flower on a brillant spring day.