Stick to the "rules". Dismiss them without impregnating Tatiana.

You continue to clean yourself as Tiffany and Tatiana squirm at your feet. You have not shut off their clitoral augments. You prefer to be serenaded by their moaning protests.

"Master... please impregnate me so that Tiff and I can remain in synch." Tatiana begs up at you.

"THE RULES ARE THE RULES, GIRL. YOU KNOW PREGNANCIES ONLY TAKE 3 MONTHS DUE TO THE MEDICAL CONDITIONING YOUR SISTER WILL UNDERGO. YOU'LL BOTH BE READY FOR BREEDING IN NO TIME."

"I suppose, Master," she says through chattering teeth. She massages her buzzing clit unsuccessfully trying to relieve the sensation. She slides over and cradles her sister and gently pats her bloated belly still fat with your seed. Tiffany looks up at her with heavy eyelids. She doesn't look like she can handle much more stimulation.

You finish cleaning and shut off their clitoral augments. They both moan with relief. You call the guards to remove them, dress, and meet your secretary in the hallway. You almost slip on the trail of cum, that Tiffany left as she was dragged from your chamber.