Definitions by Curvestomp

Curbing 

The intense hardcore male version of scissoring. Many participants often experience bruising of the scrotal area. Often a form of symbiotic cock and ball torture. For the much gentler version of this position see curving.

Holy shit I've never seen such intense curbing before I think that guy might have a bleeding nut.

Curbing by Curvestomp April 7, 2022

Curving 

The gentle male equivalent to scissoring. When a male rubs his scrotum softly against another males scrotal sack. For the hardcore and much more intense variant of this position see curbing.

I heard that fine gay couple curving last night, man he really got off.

Curving by Curvestomp April 7, 2022