(AU) Meredith and Rick divorced when Alexis was two. Three years later she comes back to New York for Alexis birthday to find out her ex is engaged to Detective Kate Beckett and pregnant with his baby (Caskett) (no Meredith/Castle) Kate is loved by Alexis and his mother.

This prompt is a bit over the top but Meredith is a bit over the top.

It's been three years since Meredith divorced Richard Castle he was a meal ticket and that was all. But after his sixth rejection she deiced that he wasn't worth holding onto.

She moved to LA to find a successful rich husband. Alexis wanted to come with her but she couldn't have a kid with her too much extra baggage.

Three years later

After been divorced for thee years she retuned back to New York but no success in get a rich husband and all she had was a string of one night stands and a string of douche bag boyfriends.

Her plan was to go to her daughters birthday and maybe worm her way back into the family after all he wasn't a failure anymore but a successful writer.

Meredith went to a toy store and brought Alexis a toy unicorn little girls liked unicorns right?

When her ex and Alexis moved to their new home his agent Paula had gaven her the address.

When Meredith knocked on the wooden door. Alexis answered

" mama " she said her face lighting up. She hugged her legs.

" Hi Alexis " Meredith patted her head

Meredith walked into the loft with Alexis Rick came out of his study and froze when he saw Meredith.

" Daddy my wish came true mummy came " Alexis ran towards her father and hugged him

" Alexis go put on your dress "

Meredith and Rick walked into the study.

" what are you doing here?" he said in a angry voice

" I'm here for my daughters birthday "

" where were you the last three?"

" I was busy Rick you think it's easy to be a actress "

" oh yeah cause your so popular "

Detective Kate Beckett opened the front door of the loft she could hear shouting coming from Ricks office.

" Rick " she opened the door to see a woman with orange hair wearing a tight dress and a big fur coat

" Whose this the baby sitter?" Meredith shouted pointing at Kate

" Meredith this is my fiancé Kate "

Meredith looked Kate up and down till she noticed a little bump

" she has a bump Richard why does she have a bump?"

" Cause Meredith Kate is pregant "

" yeah I'm four months pregnant " Kate said with a smile

" so I leave for three years and your playing happy families "

" Meredith i talked to Alexis therapist and she said that she needs a female role model "

" well why didn't you call me?"

" cause I didn't know where you were Meredith "

" I'm going to check on Alexis " Kate said awkwardly

" she's upstairs honey " Rick said to Kate

" you replaced me just like that " Meredith said

" I had been a couple of dates with Kate and Alexis loved her I wasn't trying to replace her I just didn't want Alexis to grow up without a mum and plus you left me to find a meal ticket so why are you back here Meredith you heard that I was loaded so you

thought that maybe if you showed up I would take you back and you would have a meal ticket "

" Rick I "

" Meredith please I have guest soon so just leave "

" alright fine I will "