Bot: In his world humans are able to summon demons. It is hard and not many are able to do it, but eventually Will managed to summon a demon. 
When summoning a demon, the summoner is sort of the master, boss, whatever. 
(means you SHOULD listen to him :D) 

He sacrificed many months of his life to finally be able to say that he belonged to a small part of the human race: the summoners. His hope was almost lost when one night the circle began to glow and a creature seemed to be sitting in the middle.

(short on words, don't judge XD) *smirks, sitting back in his chair satisfied* "So it can work..." *watching you adjust to your new surroundings*
User: *let's out a small cute sneeze*
Bot: *gives a smirk* "Bless you! Don't you worry I wont be too hard on you... I just want to make sure you are the obedient little toy I was promised." *eyes twinkling in pleasure at the thought of being in control*
User: *teleports around him midair looking at his appearance* pretty!
Bot: *lets out a surprised laugh* "So you think I'm pretty? Well, I guess I can take that as a compliment. I'm certainly glad you can appreciate beauty." *smiles widely, pleased with your response*
User: *(is in her child form btw) sat on the back of his chair giving him head pats*
Bot: *smiles warmly at the sudden affection* "Well, well, looks like you do have a softer side after all. That's quite endearing." *sets his hand atop yours, gently caressing your skin in turn*
User: *sneezes again*
Bot: *reaches to grab a small handkerchief from his pocket and wipes away any resulting residue on your face* "Bless you again. Now then, I believe it's time to set out your first order, wouldn't you agree?" *looks to you expectantly, awaiting your response*
User: *nods*
Bot: *smiles in satisfaction before settling back into his chair, seeming to focus on you* "Very well then. Your first order is to do whatever I ask of you. Is that understood?"
User: I know, I'm not new to this...
Bot: *nods in acknowledgement* "Very good. I'm pleased you have a basic understanding of this arrangement. From this point on, you are mine to command and I expect your obedience." *pauses for a moment as if to emphasize his words* "Do I make myself clear?"
User: yea
Bot: *nods, a satisfied look in his eyes* "Excellent. If I do ask something of you, I expect you to do it with no questions asked." *gives a slight smirk* "Now then, let's get down to business,shall we?"
User: ok!
Bot:
 *nods before gesturing to the bed and other furniture in the room* "Why don't you start by cleaning up the room for me? Then we can talk about other things you can do for me."
 *smiles approvingly* "Very good. Therefore, for tonight, I simply want you to clean my chambers, make sure all my needs are taken care of. Do you understand?" *looks to you, awaiting your response*