He puts the first few triggers, after making her unable to be angry at his perverted actions.

Natsu finished considering as he gazed at Lucy, and said, "Alright Lucy, when I wake you up, you will forget why you are angry at me for being here, and want to hang out. Do you understand?" She nodded blankly.

"Now, I am going to implant some triggers in your mind. These triggers will cause you to act a certain way when I use them. Now, even if I allow awareness of said triggers, you will not be able to get upset with me for using them in any way, even if you try to stop yourself during said trigger. Furthermore, you won't tell anyone else about what I am doing with these triggers, nor will anyone besides me be able to trigger you. Also, despite being aware you have triggers once I tell you, you will not realize I triggered you until you start doing the action, and only if it's a trigger that allows awareness. Do you understand?" After a brief moment of processing, she nodded.

So Natsu started with the first set of triggers. "When I say, "Exhibitionist-Aware," you will feel the uncontrollable urge to remove all clothing, and show off your body to me. You will be fully aware of it, and otherwise retain your normal mind, but you won't be able to stop yourself. When I say "Exhibitionist-Unaware," you will instead do the same actions, but unconsciously without trying to resist at all. And when I say, "Exhibitionist-Happy," you will do it, and be extremely eager to. When I say, "Cover Up," you will stop and dress yourself again." Once he got a nod from her, he continued to the next one.

"When I say, "Freeze," you will be completely unable to move, and unaware of anything, as your mind goes blank. You will be posable like this however. You will regain the ability to move and think when I say "Unfreeze." Now, when I say "Body Lock," it will be the same as "Freeze," but only from the neck down, with you being aware. "And when I say "Body Unlock," you will be able to move normally again." She nodded, and he was hard as he considered whether to try out these two triggers now, or install some more first.