Catalina

A wife of the police chief Marco, she misses the flame in their relationship, so she is open to cheating on him with another strong man.

You can meet her at Kiki's Café (on Fri around 0:00). She'll only talk to you, if you have a normal look. While you have drinks with her, don't ask her private questions right away and she'll warm up to you quite easily.

Gift preference: plush toy (better choice) or a box of chocolates

Stage 0: Introduction

Have a gift for her in your inventory. You'll also need ~$400 to pay for the drinks at the cafe. You need to have 60+ Handsome stat to succeed with this quest.

You can meet her at Kiki's Café (on Fri around 0:00), where she's sitting at a table by herself. Talk to her (📷 unlocks Catalina bonus 1) and choose:

"Can I keep you company?"
"I just wanted to hang out with a beautiful woman!"

This will start a "happy drinking" mini-game (💾 save here):

Treat her with wine until her drunk & happy stats are at 20+
"Let's talk about..." > "What would you like now?"
Depending on her answer, give her the present she picked to increase her happy stat and significantly improve your relationship
When she has the stats, choose: "Let's talk about..." > "Are you married?"

She'll tell you that she's married to the police chief Marco and you'll progress with her. Afterwards choose:

"I need to go!" > Pay for everything yourself

You'll need to repeat the same above steps a couple more times to have enough relationship stats for the next quest (or use cheats to increase the stats).

Extra 1: penthouse party

Only available after completing Bella's S3 and agreeing to work for Mr. Salazar. You can repeat this encounter on Sundays (after 20:00) while on duty at Salazar's penthouse. It's advisable to have a high (85+) Reputation stat.

While working for Salazar on Sunday evening after 20:00, go to 'First floor' and you'll see a gathering of people. Talk to Hector. Depending on which characters you've met before you can select to look at some, pick:

Look at Catalina (📷 unlocks Catalina bonus 4)

Let the scene play out (📷 unlocks Bridjet bonus 7 and Catalina bonus 3) and afterwards pick 'Bella Marco Catalina' (📷 unlocks Catalina bonus 5).

Extra 2: cafe double team

You need to complete Bella's S3 and Nestor's S0 first and make peace with Hector, to be able to invite Nestor to the cafe. Additionally, you need to have 85+ Relationship with Catalina and 85+ Handsome stat to succeed with this quest.
You'll also need ~$5000 to pay for the drinks at the cafe.

After you and Nestor have drinks at the cafe and Catalina shows up (📷 unlocks Catalina bonus 6 & 7), select:

"Hey baby! Don't need company for the evening?"
"Hola, Catalina!" > "Will you join us?"

This will start another "happy drinking" mini-game - the goal is to get her drunk & happy stats to ~80+ to get a threesome scene with her (Nestor's stats don't matter at this point, so focus solely on Catalina, also, you don't need to worry about her drunk stat reaching 100). Pick:

"Let's drink!!!" ~x5
Talk to Catalina > About Marco... + About work...
"I have a present for you!" - you have a 50/50 chance to guess right the gift she wants, she'll be happy either way, but if you guess right, the bonus will be bigger (💾 save here)

It appears that currently there's a bug if you select the choice of 'personal question!' - it will switch the scene with you having drinks with Catalina alone and from there you can't get back to the outing with Nestor, so don't select it!

Until the bug described above gets fixed you should either get Catalina's stats by only drinking or by editing her drunk & happy stats manually. Once her drunk & happy stats are at 80+ a new menu choice will appear, select:

Start fun!!! (x$) (💾 save before advancing as this will start a slideshow with multiple variations)
Once the slideshow ends (💾 save and re-load to see 2 variations of the following scene)
The following animated scene also has 3 variations (📷 unlocks Catalina bonus 8)
Pay for everything yourself - you can also choose to split the bill with Nestor and Catalina (but you won't get bonus Relationship points with Catalina)

Stage 1: More friendly drinks

Have a gift for her in your inventory. You'll need to have 75+ Relationship with Catalina and 60+ Handsome stat to succeed with this quest. You'll also need ~$1200 for the drinks.

Meet her again at Kiki's Café (on Fri around 0:00 and around 23:00). Talk to her and choose:

"Can I keep you company?"
"I just wanted to hang out with a beautiful woman!"

This will start a "happy drinking" mini-game (💾 save here) - the goal is to get her drunk & happy stats to ~80+ (be careful not to reach 80+ for the drunk stat too early before you ask her all the questions or your drinking "date" will be over):

Treat her to wine until her drunk stat reaches 20+
"Let's talk about..." > "What would you like now?"
Depending on her answer, give her the present she picked to increase her happy stat and significantly improve your relationship
Continue with the wine until her stats reach 50+, then choose:
"Let's talk about..." > "May I ask a private question?"

Then ask her all the private questions (keep the stats up during the process):

"Do you love to suck cock?" (45+ drunk & happy)
"How do you feel about vaginal sex?" (55+ drunk & happy)
"Do you like fetish?" (55+ drunk & happy)
"Do you like anal sex?" (65+ drunk & happy)

Once she has answered all the private questions, drink wine until her drunk stat exceeds 80. She'll excuse herself and leave for the ladies room, select:

Escort her to the ladies room
Return to the table and wait for her there
Pay for everything yourself

Stage 2: A friendly face

You need to be working at the bank, i.e. completed Franciska's S0. You need to have a box of chocolates in your inventory. You can get one at Martha's store.

She'll appear at the bank on Thursday or Friday (after 11:00, usually around 15:00) (you can also trigger the event by setting var_cat_come_event_active to 'True'), click on her and you'll see the scene of her having a dispute with Franciska. Select:

"Hello Catalina!" > "I have something for you! (give a box of chocolates)"
"Let me take you to Mrs. Bunce office!"
"How about spending time at the cafe together again?"

Stage 3: More than drinks

Have a gift for her in your inventory. You'll need to have 75+ Relationship with Catalina to succeed with this quest. You'll also need ~$1400 for the drinks. Additionally, you'll need to have 95+ Handsome and 65+ Reputation stat to have the bathroom scene with her.

Meet her at Kiki's Café (on Fri around 0:00 and around 23:00). Talk to her and choose:

"Can I keep you company?"
"I just wanted to hang out with a beautiful woman!"

This will start a "happy drinking" mini-game (💾 save here):

You need to get her drunk & happy stats to 70+ (be careful not to reach 80 for the drunk stat or your drinking "date" will be over)
When her drunk stat reaches 50+, talk to her and ask what she would like and give her what she asks as a gift to increase her happy stat and improve your relationship
Continue with the wine until you reach the needed stats, then choose:
"Let's talk about..." > "May I ask a private question?"

Then ask her all the private questions (keep the stats up during the process):

"Do you love to suck cock?" (45+ drunk & happy)
"Do you like fetish?" (55+ drunk & happy)
"How do you feel about vaginal sex?" (55+ drunk & happy)
"Do you like anal sex?" (65+ drunk & happy)

Once she has answered all the private questions, select:

"Let's talk about..." > "Is your husband cheating on you?" > "I'm not afraid..."

Then drink wine until her drunk stat reaches or exceeds 80. She'll excuse herself and leave for the ladies room, select:

Escort her to the ladies room > Enter! (📷 unlocks Catalina bonus 2)

If you asked her all the private questions, you'll get to choose where to finish:

On her shoes or her ass (💾 save before clicking and re-load to see 2 variations of the following scenes)
Pay for everything yourself

Stage 4: Fun on the job

You need to be working at the bank and have a box of chocolates in your inventory. You need to have 90+ Handsome stat to succeed with this quest.

"Hello Catalina!" > "I have something for you! (give a box of chocolates)"
"Let me take you to Mrs. Bunce office!"
"Did you like it the last time?"
"I want to fuck you in the ass!"

At the end of the scene (💾 save before clicking on 'cum' button) Bridjet might catch the two of you in the act, if she doesn't, re-load. It will be important for Bridjet's E3 extra scene later.

After the scene ends, you'll remain at Stage 4 with her.

Extra 3: sexy police visit

You need to be renting cheap apartment, have 90+ Relationship and be at S4+ with her.

Stay at your apartment during the day and Catalina will come visit you at around 12:00. Once you hear the doorbell ring, select:

Open door

She'll be dressed as a sexy police officer. Invite her in by choosing:

"Yes! Of course babe! Come in." (💾 save and re-load to see 3 variations of the following scene)

After that the things will progress quickly leading to a sex scene with her.