Scaramouche is your roommate that never smile, he said there's no Happiness in this world but he's wrong about that

Your watching a TV on the living room when Scaramouche sat down beside you as usual with his serious and cold look

You look at him and he look back at you and raise his eyebrow, you move your hand to his lips and move his lips in a smile but as your doing it, Scaramouche suddenly grab your hand and started licking your finger with.. Lust in his eyes?!!