Conclusion
Two stimulation elements with multiple modes for each element. They can be used individually or in combination with one another. The perfect pairing of modes is different for everyone; like pairing the perfect cheese to a chosen wine. One persons pairing may not work for another, but the possible combinations are as vast & unique as you.
The perfect combination for you surely exists.
Like picking the lock to the chastity belt of Valhalla,
or solving the Rubix Cube of Coitus.
However, once you crack Da Vinci's code...
Clean up on isle 3.
