Twice as pleasant.
Double dildos are extra-long toys that are designed be shared, vaginal and / or anally. The best position to play with a double dildo is to sit facing each other with your genitals together and your legs forming a scissor, over one another. One of you should grab the dildo by the middle and move it to your own rhythm.
They have a great voyeuristic potential as well as intimacy, as you experience the same sensations your lover does.
They can be used in simultaneous oral sex (69) folding them. The disadvantage of this application is that it can be difficult to coordinate. Another thing to consider when choosing one is the different tastes in size of the lovers, because most of them are symmetrical.