Once you get your smarts stat to 7 or higher, head to your computer and go re-read your contract Mrs. Antlers sent you. Click on the option [Focus specifically on trying to find information about uniform requirements]. Choosing this option will unlock a new conversation topic with Mrs. Antlers after work. Once in Stage 3, after work head into her Office and choose to [Talk about your uniform stipend]. This will enroll you into the A-SLUT program.
Once you are enrolled into the program, you will be tasked with upgrading your uniform in some way. Head to the Tease me, Please me Lingerie store in the mall and check out the fetish section. After not being able to find something that would blow Mrs. Antlers away, ask the clerk that you're looking for something special and she will lead you to the bespoke items. There you will find three items for you to buy:
Pink Satin Corset
Gold Hoop Earrings
Pink Thigh High Boots
Buying the boots will start you on the "bed heels" quest
You are only able to buy one of these items at a time. Once you buy one, head home and open the pink box in your inventory. When you do you will get an intro scene for the specific item you bought. Make sure to wear the item you bought to work the next day (or next week if it's the weekend) since Mrs. Antlers has to inspect the new item before you can buy another one. Also note that you will get some money back for the first item that you buy, the other two you have to buy on your own.
To ace and finish the A-SLUT program, you'll have to successfully complete a morning inspection while ALSO meeting these requirements:
Have bought and worn the Pink Thigh High boots for Mrs. Antlers
Have bought and worn the Pink Satin Corset for Mrs. Antlers
Have bought and worn the Gold Hoop Earrings for Mrs. Antlers
Have completed the lunch heel training
Have normal, expert, moviestar, or doll makeup applied
Wearing female office clothing
Have some style of hair from the hairdresser
Your corset is fully laced
Your makeup is perfect
During your morning inspection after getting dressed, if you meet all these requirements Mrs. Antlers will congratulate you on finishing the A-SLUT program and tell you how proud she is. Afterwards you head back to work.