Q: While having anal sex, I felt extremely wet without the man coming. Was this a natural lubricant, or was the sexual stimulation inducing bowel movement?
-- Katie
A: There is natural lubrication in the anus, but it's not consistent or long-lasting enough for sex.
The anal canal regularly produces mucus and, with an empty bowel and intense sexual stimulation, can produce enough to create the wet feeling you describe.
The purpose of anal mucus is to provide easy passage for poop. Since there's usually not enough of this mucus to allow for smooth entry through the back door, always use a healthy dollop of your favorite store-bought lube when having anal sex. This will help protect against tearing and irritation of the anus' delicate mucus membranes.
Since the membranes are also extremely porous, you should either use condoms to protect against the transmission of an STD, or get tested to ensure both you and your partner are STD-free.
Q: My current lover is uncircumcised, and I think this aspect of his anatomy is having a negative impact on our sexual relationship. He tends to ejaculate quickly without much effort, and his semen always has an incredibly foul scent which lasts long after the sex has ended. None of my past partners had these problems, and they were all snipped. Is this just a coincidence or is his foreskin the problem? If so, can it be fixed?
-- Kari