I HAD sex with my mother-in-law on her silver wedding anniversary. It was amazing and she’s made it clear she wants to do it again. I’m 26 and happily married to an amazing woman. She’s 24 and I’m proud she’s my wife but lately her mother’s been showing an interest in Estimated Reading Time: 3 mins. The two guys couldn't come up with anything. So the son-in-law didn't buy his mother-in-law anything for her birthday. When the big day arrived the next weekend, she was a bit upset. At the family gathering for her birthday, she announced out loud to everyone, "Thank you all for the wonderful gifts. Mother in law flirts. So I've been married to my wife for 7 years. We went on vacation to the beach in California this summer. Me, my wife, her mom and step dad. Her mom is very flirty and I flirt back. I figure it was harmless. One day I didn't really wanna go down to the beach. I just stayed under an umbrella at the hotel poolside and had.