u/Axi0madick

I'm getting a sex chair for me and my wife to use together. It comes with a plate for suction cup dildos, which we already have a couple. I always thought it would be hot for her to use a thrusting toy, but the machines are huge and expensive, but the smaller thrusting toys are usually long and look awkward as hell to use. The chair is a multi use item and comes with the aforementioned plate. Is there a good thruster out there that is about as long as a typical auction cup dildo that is also body safe and not too hard on the outside?