A devil's three-way is when two male friends have sex with one woman at the same time. This act usually doesn't include the male participants perform any sex acts on each other but only with the female.
While on the phone you can hit flash and then dial the third party. When you have them on the line hit flash again and all three of you will be on the phone.
If you meant other than on the phone,...
Yes. Elemental Hero Neos can be Contact Fused with two other appropriate Neo-Spacians to form the following cards: Elemental Hero Magma Neos Elemental Hero Storm Neos Elemental Hero Marine Neos...