DPP
From Voyeurweb's Wiki about Sex
DPP stands for double pussy penetration.
This is the way many hot wives like to accomodate the starving cocks of their lovers in a good MFM threesome experience. In general, DPP could be arranged with a cock & dildo pair but the best result is reached with two thick, hard & hot male cocks.
For a detailed explanation on how to arrange a good DPP party for your wife, see DPP Game.
Read more under double pussy penetration.