Rain dancing originates from the ancients as a cultural tool to invoke rain for their agricultural, ceremonial and spiritual needs.
Anybody can create their own rain dance for entertainment or 'other' purposes.
The rain-fuck has individually-relative meanings but as a foundation it entails conducting your rain dance whilst having sexual intercourse.
NOTE: the rain-fuck is not intended to be romantic or even attractive; its merely a sexual entertainment tool....
#2 - yeh actually, i even brought out my rain dance and rain-fucked her