riding the rail 

When a girl straddles her male partner and rubs her pussy on and along the underside of his erect penis, without actual vaginal penetration. May be an adjunct (foreplay, playful coital interlude, serious clit mashing) or alternative to coitus.

Kimmie wants to keep her hymen, but she loves 69ing, anal, and riding the rail.

I love Tina double-edging us by riding the rail, so we supplode together when she finally shoves it in.

riding the rail by insidiot May 26, 2019

Riding The Rails 

To get a blow job from someone with braces.

Riding the rails is hospital material.period.

Riding The Rails by Muffiluffigus August 11, 2004