So I posted about this before. Although with a spin. I bought my girlfriend the je joue kegel balls. She put the middle sized one in and we went for a looong ride. She did not orgasm, but she did say that she was more aware that something was in her and the vibrations made her super horny and soaking wet. Needless to say when we came home, she went on another kind of looong ride. Mind blowing sex.
The wife and I have taken trips to different parts of the US to rent a bike and take road trip from the rental site. One trip was to Daytona for a ride to Key West. If you have taken the drive down the Keys, going can get slow at times and with the warm air, vibrations and the relaxing mood, I was pleasantly surprised with my wife's finger, that was slipped into my mouth covered with her juices.
This was a gooood ride.