Neither of us are "bi" at least not till this time but we got so hot that we started fucking each other in the back seat. This is all recently. We love going down on each other after a good shift-stick-fuck. Strange, but true.
I have heard of this many times but have never witnessed it. Have even heard of auto accidents because the girl is fucking the stick shift while the driver is so distracted by her that he or she wrecks the car. Never ANYTHING SERIOUS EXCEPT FOR THE NERVES.
I've never heard of anyone refer to a manual driver as "shifting for themself" but it sounds like you two found a great hobby. Just don't do it while the car is moving. I drive a stick and I have a great aftermarket shifter for this sort of thing but it's never happened in my car. I definitely wouldn't do it while driving cuz you know the shaft is going to pop out of gear at any moment.
I'm the O.P. NO, NO, we are young but not stupid. Who in the world would fuck the
stick while moving? We are safely inside a garage. We are planning on moving the
action inside with a large dildo. We're turning into two little, hot whores for each other. This is now all unexpected and very weird.