what is the most sexual thing you have ever done

eased my cock up a girls ass one time . we were home alone and i was worried he mother would catch me. i used a bunch of lube because i didnt want it to hurt. i was so nervous. and was only half hard. she had an anal gape so i new she had gotten anal sex before, i was really just trying to see if it would fit when i spunked in her butt in about 15 seconds . then i got rock hard and my load made it even more juicy so i started up again. i rocked in and out of her tiny ass , it was so smooth and tight and she took the entire shaft . and i showered her insides with cum again . we had a second shower together afterwards. my suspicions were right on . she was getting anal sex on a regular basis, she could take my entire length without pain and anal sex is really fun for both people.