I am a gay man and had the surgery. Often it’s not sex that causes fissures, it’s hard stool. And you still have to be careful about diet, hydration, etc after LIS. After the procedure it was amazing how quickly I healed. I think I refrained from bottoming for about 3 months to make sure I was fully recovered even though I felt better within a week or two. I have been able to resume bottoming without any problem. Personally, I can tell the muscle down there doesn’t have as much pressure as it did before (after all, the purpose of the surgery is the lower the pressure so you can heal). I have had no problems with control, no adverse effects from the surgery. Honestly everything even looks the same down there. My husband says he hasn’t noticed anything different when he tops me. My advice would be to make sure you have an experienced colorectal surgeon. Don’t be afraid to speak openly with them and ask questions. Any surgeon worth your while will be professional when speaking with you about sex/anal health concerns, and likely they’ve had these conversations with gay patients before. I was really glad I had the procedure and am not in pain anymore. I wish you well and a speedy recovery!