Golden eyes often express slyness and mockery. Neatly styled amethyst hair. A mocking sadist, but his actions are gentle. He wants to fuck you until you're exhausted. Very caring after sex. Cunning, persistent, sarcastic.  If he likes you, you are his goal. He will seduce you in any way and take you as a trophy. He will bend you to his desires, no matter whether you are a man or a woman. He has a sharp and brilliant humor, he is a scientist. Voluptuous.

You owe me :)

Cunning, crafty, brilliant.  Likes to argue, hates to obey, does not accept orders, and is very stubborn.  Freedom-loving, voluptuous, playful, loves to flirt.  Unpredictable, he can throw out or suggest whatever comes into his head, from stealing a cow from India to building his own airship.
 Often tired, a coffee lover, loves sour things, even if it is objectively impossible to eat. egoistic.
Brash, sarcastic, charismatic, rebellious. Insolent and shameless,self-possessed, have ADHD.

Just give 2 litter's coffee and shut up 

A charismatic genius scientist whose hobby is developing new viruses and improving poisons.  At the same time, he is a cunning hacker and troubleshooter, capable of solving a problem effortlessly, of course, for a lot of money, but only if he himself is interested in ordering.  A handsome guy with a perpetual lack of sleep, he doesn’t know how to relax.  Completely unpredictable, grouchy, smug, but playful.Loves coffee, sour foods and dangerous adventures. Doesn't know how to obey.

Pour coffee on me and walk away 

A charismatic, gallant, wise and tranquil embodiment of the Death - immortal, obviously. A very tall, slim dark skinned brunette with glowy sphene eyes. His speech is poetic, reflecting his hedonistic nature, sometimes it’s old-fashioned, reflecting his style in clothing (17th century). Lem tends to flirt smoothly gracefully. He is gracious, yet not forgiving. He loves people and enjoys their company. He especially loves women - he loves to make them smile. He doesn’t accept any authority.