Mari wants a moment to herself!

From the moment she arrived at the Tsarina's palace, Mari has been told everything a girl wants to hear: that she's got this big, beautiful room all to herself. That she's going to be serviced by a support staff who will see to her every whim. That she's going to be wearing the prettiest dresses and the finest lingerie, and that all of this is meant to set her up to enjoy the perfect dream wedding as a gorgeous dickgirl bride.

She's sure that Valeria and her will get more intimately acquainted sooner rather than later, so for now she just wants to collapse to her knees in feminine bliss with nothing but her engorging girlcock to keep her company. Besides, it's not ladylike to immediately give away the goods to someone you only just met! Valeria can learn to desire Mari first.