I was chatting with a buddy that recently finalized an expensive divorce. He went down to his lake house to relax for the weekend. He was talking to his neighbor lady and she asked about his wife. He corrected her real fast with a "EX wife!" and the conversation changed gears. Two consenting single adults did what you are thinking.
He did not get into any details but he said he was doing things he had only fantasized about before. She is a lot more adventurous than the ex-wife. He said he was going to buy a large bottle of Vitamin E. He said if he told any details it would sound like the letters in the back of Penthouse magazine whatever those are.