Eventhough Wells and Kristina's relationship wasn't that strong Kristina still fell pregnant.

As Wells was waiting for new life to begin, Michael was preparing for his to end.
He decided to retire to spend time with the family and work on the house, upgrading stuff.
With Harley.
Cloudgazing with Louisa.

Flea market was back in town. Since Syda was out of the household Michael wanted to go there himself to find the last MySim figurine. Louisa and Syda went with him though.
Probably seeing Syda for the last time.
Onto trading...
He came across this dirty and stinky vendor:
She was none other than Kristina Slater, Wells' lover. And the good thing is, she gave Michael the missing figurine! That completed the MySim figurine collection.
Back home, spending more time Harley.
And a little bit with Wells.
Maybe his last time sleeping in the bed with Harley?
Maybe his last time woohooing with Harley?

The parents aren't the only ones growing older. Wells' daughter Ava had grown into a kid so Wells called her over.
Nobody knows how two black haired women produce a yellow haired kid.
But she sure is dear to Wells.

When Ava left, Kristina came over:
Still pregnant.

Only time will tell now how long Michael has left... He's just gonne keep upgrading things, like the fireplace in sauna, the stereo, maybe the TV and all the sinks, toilets and showers.