When two or more parties leave evidence of having anal sex without proper bowel evacuation resulting in an awful mess.
I met this kinky chick who never used the word no. Not wasting any time, I put all the love I had in her ass but she sent it all back. Now I have to buy a new mattress before my parents get home and find out I had Stainal Sex in their bed.
by Stevie LaLa May 5, 2016
Get the Stainal Sexmug.