MIL

My former mother-in-law (mil)47 moved into the same apartment building as I was living in. My wife decided after 4 years of marriage; marriage wasn't what she wanted in life. So, at 29 I was single again, not in any hurry to remarry I focused on my career. The divorce was amicable we split everything down the middle, except her cat. She went off to find herself she said, I got a new apartment closer to my work. My former mil divorced herself was also focusing on her career and had moved to the same city as me. Actually, straight across the hall from my apartment, my apartment was slightly bigger as I had a balcony which I'd two seats on. It wasn't really that big, but it came me the feeling of more space. She had been living there 3weeks before we met in the elevator, still on good terms. The following weekend we had dinner together, no other reason not wanting to eat alone as usual. Over time we started hanging out together more and more, finally arriving home together after having got soaked in a sudden downpour. We'd had started teasing each by that time and going up in the elevator I said she could shower with me, and we could wash each other's backs. She just smiled at me and on getting to our floor she said Okay let's have a hot shower together. I thought she was teasing me back, but she entered my apartment with me and started undressing herself. She was serious and I decided why not and so we showered together. Things soon got fairly heated in the shower, and it wasn't the shower. We slept together that night it became a regular arrangement between, soon after my 30th birthday she moved in with me. Reason she was in my apartment more than her own. After months of living together her daughter came to visit her, already knowing we were living together. My ex had had enough of finding herself and missed being married. Hoping to recapture what she had thrown away, knowing I wasn't in another relationship other than with her mother which we classed as a "friends with benefits" type of relationship. After several weeks she was sleeping with us both and stated she was ready to start a family. With my ex-mil pushing I remarried her daughter. We bought a house and all 3 of us moved in together, my now wife soon got pregnant and is due next month with our son. Her mother shares our bed every night and it works well for us. Nobody outside our little group knows of our three-way sexual relationship.