The Journal of Reproductive Immunology has put out a recent study telling about the various benefits of swallowing semen while pregnant.
Okay, who was the wise guy who thought they should do a study comparing women who swallow while pregnant and women who choose to spit?
On a serious note, I do find it interesting that it is only beneficial to do so with the actual father of the child. Doing so with other men is pretty much useless.
I would like to know just how many other journals would actually back up these findings, but it is interesting nonetheless.