Cycling

Here's a modification for your bike @Secret_sub . 😃

Interesting question,

It does depend, on what bike I ride. My minty hybrid bike is a step through, I sit more upright, and thecsadle is softer. I have not really had any stimulation in that one.

There have been days when I have been horny before getting on my roam bike,( a cross bar frame) if I lean forward in just the right way, I can feel my clit rubbing against the hard saddle.

Also on longer rides ( without my padded trousers) the friction can create a ( delicious) ache / burning sensation on my more sensitive areas.