20 yo f w/ right lower quandrant pain after first time being intimate via rectal. paint started the following morning, less than 12 hrs after intimacy?

RLQ pain: Anal intercourse can local problems like bleeding and rectal pain but it is very unlikely to cause pain in the abdominal right lower quadrant. Unless some type of sex toy was used also, an erect penis is not going to cause bowel perforation. Did you have any bleeding or pain on moving your bowels the following morning? Have you moved your bowels yet? If the pain worsens you should see a physician.