Over the course of the day send her to a public toilet 3 times; each time, tell her to get to the edge of orgasm, and then return without washing her hands, so you can smell her juices.
Tell her to masturbate to the edge of orgasm in front of you.
Throughout the day, whisper in her ear, write him notes or send him text messages about what you are going to enjoy about tonight, and what you enjoyed about last night.
Slip your hand up her skirt and finger her in a public place.
Tell her to uncross her legs, perhaps on a train, for a basic instinct style moment.
Take her lingerie shopping. Work with the sales assistant to find the sexiest/sluttiest lingerie you can.
Go to a sex shop dildo/vibrator shopping. Buy a wand for intense orgasms for her.
Send her off to the toilet with some panties and love eggs. Tell her she has to keep them in for 2 hours.
Send her off to the toilet with some panties and butt plug. Tell her she has to keep it in for 2 hours.
I hope you have a fantastic day; and of course, if you want more orgasms, request them as you like; just none for her. When you are ready for tonight’s fun, continue.