Sherlock:
Neither of you spend too much time getting ready. In the mornings you would share a bath and you'd do your make up as Sherlock watched, he found it fascinating.
On the nights you'd brush your teeth together while making funny faces.
John:
He liked to take his time in the bathroom in the mornings. Everything needed to be proper done.
On the nights he liked to run you a bath and would give you a nice foot massage.
Moriarty:
He could be a drama queen. Therefor he had to look perfect. He'd spend at least an hour in the bathroom.
You often had to shower or use the toilet while he was there.
On the nights you would share a shower and brush your teeth together.
Greg:
You would stand next to each other while getting ready. He'd shave and you'd do your make up.
On the nights he would run you both a bath with rose petals where you'd share a glass of wine and talk about your day.
Mycroft:
You liked to spend time on your make up and hair. That also meant that you were the one using the bathroom the most in the mornings.
But on the night it's Myke. He takes really long showers, which often led to you not wanting to wait anymore and would join him instead.