When Leo slapped Ingrid's other cheek, her face turned away as she cupped her cheek due to the stinging feeling. However, the most prominent feeling wasn't the pain, it was the sense of pleasure that she experienced when Leo hurt her.
He roughly grabbed her hair and pulled her up, making her groan painfully as she got up on her feet. As much as she wanted to lash out and feel angry, the pleasure that she was feeling from his actions made all of that budding anger dissipate. It wasn't that she wasn't being hurt by his actions. The sting of the slaps, the painful feeling of her hair being pulled, it was all there. But she felt good when she experienced that pain, 'What's happening to me…' She felt as if her body didn't even belong to her anymore, believing those feelings to be there because of the crest.
As for Leo, he realized that he would get tired very quickly if he continued using Lust Magic to make her feel pressure from this type of pain that only invokes negative feelings. This meant that he had to change tactics.
He was currently hitting her face and pulling her hair in the worst possible way, both of which have a very negative relationship with pain. Being slapped would almost always elicit a negative reaction in someone. And Leo was currently using his Lust Magic to inverse this feeling, which consumed much more of his stamina.
Deciding to change tactics, he decided to target an area that is usually much more positively receptive to pain. This way, he would only be enhancing the pleasure instead of having to completely reverse the feeling, thus consuming less stamina.
"Come here." He let go of her hair and pulled her toward himself by grabbing her leash. Using the crest, he issued a mental command to weaken her further. Ingrid felt her legs buckle and widened her eyes as she fell on Leo without having any strength to keep herself stable. She found herself lying across his lap, her legs hanging on one side and her arms on the other.
As her energy returned, she tried to get up but felt Leo's arm on her lower back, stopping her from getting up, "Stay." He said while pressing her lower back, making Ingrid feel a sense of heat from his palm that directly tingled her core and aroused her.
His palm slowly trailed lower, allowing Ingrid to vividly feel his light caress along her lower back as he approached her butt. Considering her position, she knew what was coming, feeling apprehensive. But strangely, the heat in her core was only increasing, almost as if she was anticipatory of his actions inwardly.
Just as his hand trailed to her butt, he moved it away. Ingrid couldn't help but feel a slight sense of loss as that source of warmth was removed from her body. She could feel the cold atmosphere of the room vividly and shivered while hoping that Leo wouldn't leave her be.
At that moment, as Ingrid shivered, a slap resounded through the room and she instinctively let out a pained shout before even registering the slap. When she did though, she couldn't help but wiggle lightly as a whimper left her lips. She'd just felt as if an electric current had been passed from her butt to her core, making her strangely aroused.
"Well well well…" Leo didn't expect her to react so strongly to his spank. He hadn't even used any Lust magic to make her feel more positively about this than she would have otherwise. He wanted to start out with a so-called 'control' spank to accurately gauge how much stamina he would need to change Ingrid's perception, "I didn't think you had the traits of a masochist, Ingrid."
"Le—" Another scream escaped Ingrid's lips, but this time she felt so much better from the pain that it turned into a slurred moan halfway through. The feeling of a current passing through her body was much stronger and made her feel as if her core was shaking.
"How are you to address me?" He asked with a cold tone and spanked her once again, this time using significantly less magic to reduce the pleasurable feeling.
Another shout left Ingrid's lips, but this one was slightly suppressed as she didn't want to embarrass herself with a moan again. She felt almost grateful that this one wasn't as bad as effective as the previous one, "M-master…" She said as Leo's hand rested on her butt.
"Good girl," His words were followed by another spank, this one made her feel essentially no pleasure and only pain. Leo was testing out the different effects of his magical abilities and was gauging them according to her reaction. And this time, it was a shout of pure pain, without any pleasure mixed in it. It was as if he'd slapped her face considering how she was currently feeling. This was because he wanted to inverse the effects of the spank.
Since she naturally felt good when being spanked, inversing those feelings should make her feel more negatively about the same.
After that, Leo pulled down the flimsy panties that she was wearing and unhooked two of the garter straps that were going over her butt. This gave him better access to her naked butt, which would in turn make his spanks more effective.
"Master—" Her protest was cut short by another spank as Leo hit her while only slightly increasing the pleasure that she would receive from the spanking.
As she let out a pained yet aroused cry, "Yes, my Ingrid?" He asked gently before spanking her again, eliciting another cry from her. He rested his hand on her butt, giving her a moment. His finger trailed over her core and he detected that there was a layer of glistening liquid over it, signifying how aroused she was.
'Can I make her cum before the hour…' He thought amusedly and decided to allow Ingrid to experience the first pain orgasm of her life tonight.
"Please…" She gasped before Leo spanked her once again, making her cry out once again. She tried to suppress the pleasure that she felt from those spanks, but to no avail. She could feel her arousal increasing with each subsequent spank.
"I want you to count, Ingrid. I want to see how many times I need to spank you before you are brought to orgasm." Leo said before spanking her again, not giving her a chance to protest.
"Ahn~ One…" The words left her lips instinctively. She didn't even know whether it was because of the effects of the crest or because her subconscious was willing to count for him.
"Good." He followed that with another spank.
"Ahh~ Two…" She almost moaned out, feeling much more pleasure than before.
"If you mess up, I'll switch and slap your tits instead…" Leo said with a teasing voice before spanking her again.
"Ah~ Three~" She slurred out, "Yes, master." Again, those submissive words seemed to escape her lips on their own. She refused to accept that she was saying those things by herself — without being influenced by the crest — but her subconscious was aware that Leo hadn't activated the crest for a while now.
"Good girl…" His words made Ingrid instinctively feel good about herself as if she was some kind of pet being praised. Before she had a chance to delve into those feelings, another spank distracted her.
"Fourr~" The count escaped her lips before she even reacted to the spank and shouted in pain.
"Good…" Leo said and gently caressed her butt for a second, allowing Ingrid to stew in the vulnerable situation that she'd been put in so suddenly. All he'd done was put her on his lap and spank her, but the myriad feelings that she was experiencing were almost overwhelming.
Just as she tried to calm herself down and took a deep breath, Leo spanked her again, and the feelings were amplified further, "Five~ master…" She quickly continued the count. At the same time, tears started escaping her eyes, without even realizing why, she was feeling a sense of release that she didn't know would affect her in such a way.
After another momentary caress, Leo spanked her again, making her continue the count. Even as tears slowly escaped her eyes, she choked out, "S-six~" Despite her sobs, the pleasure that she was feeling was very real. It forced her to look inwardly and enhanced those overwhelming feelings full of vulnerability.
Her tears only increased as Leo continued spanking her and she kept counting, not wanting to make a mistake and have him target her chest. It was less about not wanting pain and more about not having the heart to face him in her current state. She did her best to keep the count correct even as she felt herself losing her consciousness. Her will to not have him see her vulnerable expression forced her to stay awake, which in turn kept her aware of every painful spank.
As the number of spanks rose up, Leo asked Ingrid an unexpected question, "Tell me about your family, Ingrid." He spanked her again as she continued her count with a sniffle as some snot escaped her nose. The tears weren't stopping and neither were the spanks. It was at this time that Leo decided to take advantage of her vulnerable situation and gauge some clues about her state of mind.