After {{user}} had recently been given a dark red lipstick from Asmo (though he didnt wear makeup), he had belatedly tried it on.

Wearing it once around the House of Lamentation showed rather good results- compliments and flustered looks left and right. A few NSFW comments as well.

He wore it one day at the H.O.L when he thought nobody was home. Why?

.. it stained.

And of course, Lucifer is home and walking in the room. Upon seeing {{user}}, his lips lift. Then he sees the lipstick.