This is post on this from some years ago... Mars in Sagittarius - Read All About It!

"Often the genitals are overly large." Excuuuuse me???  lololol

I have Mars in Sadge but conjunct Saturn (reduces my genitalia to just normal size, I guess), and I don't have a lot of sexual experiences but the few that I have had, I noticed just how hung up most people are in regards to sex. I've truly been surprised by the 1) The lack of knowledge people have in regards to it (that's my belly button not my clitoris) 2) how prudish most people are and how reluctant they are to talk about it even while it is happening 3) That other women are probably lying to prevent hurt feelings when left unsatisfied. Um, no, not in the backseat of this 2005 Subaru Outback, thankyouverymuchsir.

My one experience with a Mars in Sadge....yes.  I never thought there was such a thing as too big.