I guess a few does but it's definitely not common. It seems to be more about curiosity and then mostly among people that has been together for many years. Porn always take things to the limits, it's not a mirror of real life. In porn, they also use numbing creme. Clearly they wouldn't enjoy it without it. When people do it at home they do it for enjoyment and not to get it over with, like in porn.
DP = double penetration, both front and back. ;) Yeah, I think its Double Penetration.
Yes
the first porn film to clearly show uncensored double penetration was 'honeys lancer' made in 1969
no
double vaginal penetration
Double Penetration or Depends
Double Vaginal Penetration.
Yes, she can do that and needs to be very careful with it.
Information about double penetration may be found at websites such as women's health. It is difficult to do a general search for this as a number of porn sites will come up.
Does it increase, decrease, double or stay the same.
double penetration forces..
No you idiot. She strictly works girls.