Double penetration
Double penetration (DP) is being penetrated in two places at once — most commonly one penis or toy in the vagina and another in the anus, often in a threesome, though it can also mean two in a single opening. The appeal is the intense, filled-up sensation of simultaneous penetration and, frequently, the group dynamic around it. It appears constantly in pornography, which is where many first encounter the idea. It can involve partners, toys, or any combination. It's an advanced act that rewards preparation.
The draw is maximal fullness — being completely filled and stimulated in two places at once — plus, in a threesome context, the heady dynamic of being the shared focus of two partners. For many it's a bucket-list intensity.
Two partners (or one partner plus a toy) penetrate simultaneously, usually with the receiver on top of or between them to control angle and depth. Plenty of lube, a relaxed body, and slow coordination are essential; couples often work up to it with toys first.
Go slowly and use lots of lube — double penetration stretches more and raises the risk of tears, especially anally. Use separate condoms and change them between anal and vaginal to avoid infection, coordinate pace so the receiver isn't overwhelmed, and stop at any sharp pain. Warming up with training beforehand makes it far safer and better.