After breakfast the next morning I went to the hospital wing. I was examined and got a shot against pregnancy. I would have to repeat that every six month.

At work Eric summoned me to his office. He had received a request from Erudite to try a new broken-bone-knitting-serum on some Dauntless. Since we had the most injuries it made sense to send their team of researchers here to document the cases. The request came directly from Jeanine and she obviously had not felt the need to go through the official channel (me) but had turned directly at Eric. He did not like the lapse in protocol and wanted me to take up this topic with the hospital ward and send Jeanine our reply.
While I stand beside him discussion the email he kept fondling my butt which made it hard for me to focus. When we were done and I was just about to leave he got up and hugged me from behind.
"You know you have the most perfect little ass I have ever seen. I don't think I have given it nearly enough attention so far." He whispered in my ear before he slapped it playfully. I kissed him sensually before whispering back "Yeah well, it will just have to wait, because tonight I have a date with someone else."
"With whom?" He demanded outraged. I slowly edged out of reach.
"With Christina." I answered sticking my tongue out at him before quickly fleeing to my office.
"Oh you will pay for that." Eric smirked. I cocked my head to the side confused and curious at the same time. I was sure he would not hurt me, but knowing that special smirk he had something planned. Oh oh. He would not give me a hint all day though. After a while I dropped the topic and tried to focus on my work instead. After work we went to our apartments. Before we separated Eric hugged me tightly and kissed me.
"Come to me when Christina is gone." He whispered in my ear.

I cooked for Christina and me and had set the table when she arrived. During the meal we both stuck to little bits of small talk and from Christina's side gossip. Only after we had both cleared our plates she looked at me expectedly.
"Ok. Spill the beans. What is going on?"
"Well, you know things have not been so good between Four and me." Christina nodded at that. "And at some point it was just exhausting. I felt like I was the only one trying to make our relationship work. I know he cared about me, but not like that. I think we were just the comfortable choice for each other. The only two Abnegation transfers in the last couple years…" I trailed off. But Christina seemed to get what I was saying.
"So you decided you had enough and left him." She asked softly. I nodded.
"Okay. I get that. What I do not understand is what Eric has to do with all of this?" she kept pushing. I did not know how or better how much I would tell her. I felt my face grow hot and knew I was blushing furiously.
"Well, you know he is being a really good friend to me. He is letting me stay at his place and getting my mind off things." I try being vague. Christina narrows her eyes at me.
"That is not all. Eric never does anything for anyone. What did you do, sleep with him?" Christina watched me suspiciously. When I swallowed and blushed even more Christina's eyes widened in surprise.
"You did, didn't you? Oh my god." She squealed. I smiled shyly.
Luckily for me in that moment came a knock on the door. I opened and looked surprised up to see Peter standing there.
"What do you want?" I asked hostile.
"I came to apologize. May I come in?" Peter asked.
"Alright, but Christina is here as well, so don't try anything." I threatened.
"Good. Christina can verify my words. She was always the only one who could tell when I was lying even when we were back in Candor." The three of us sat down on my couch and Christina and I looked at Peter expectantly.
"I thought about buying you a present to show that I am sorry, but I realized that any present would be inadequate to what I did. So I decided that coming from Candor I would give you the most valuable what I have: the truth." Peter started. I must say I was impressed by his realization to not buy a present.
"So I knew when you were the first jumper, that you were true competition. I tried to make your initiation as miserable as possible to try to stay ahead of you.
And that was what I was trying to do the night at the chasm. I did not mean to drop you, I just wanted to scare you. But then Four showed up and I panicked and I kind of dropped you on accident to get away from him." He looked as innocent as ever when explaining this. I looked to Christina for confirmation and she gave me slight nod. Apparently he was telling the truth.
"So, you only nearly killed me on accident and you tried to scare me and bully me, because I was competition." This actually did make me feel better. I had always thought that he perceived me as weak and picked on me because he could, but if he had seen me as strong from the beginning I could almost forgive him for it.
"Yes, I knew you were stronger than everyone thought." He agreed.
"Ok. I understand that. But why did you touch me that night at the chasm." Peter really blushed at this. I felt curious since I had never seen him blush.
"It was... so, I … Ok, let me start at the beginning. Do you remember the towel incident in the dorm?" Peter stutter. When I nodded my stone-faced consent he continued.
"Well, for a second there I could see you perfect little body and Tris, I am only a guy. For days after that I could not get that picture out of my mind. I wanted to know if you felt as good as you looked. And that night at the chasm the temptation was too great. I had to touch you. I am really sorry for that." He hung his head.
Again, I looked to Christina for confirmation. When she nodded her consent I shifted my attention back to Peter. I had really gotten a new view of him.
"OK, so now that I understand why you did what you did, why do you keep treating me like dirt?" I asked with a raised eyebrow.
"I guess part of it is habit. The other part is simple jealousy. I wanted your spot in the rankings." That did sound true enough. After a few more minutes of silently contemplating each other, Peter got up.
"Well I am not going to take up more of your time. Thank you for listening." He went for the door.
"Thank you for your honesty." I replied.
"Well that was weird." Christina commented from the couch after I closed the door after Peter. "Why would he apologize to you now after all this time?"
"That would be Eric's doing. You know that they kind of became friends? Well Eric sort of broke off their friendship after I told him about the chasm incident." I explained.
Now Christina looked really thoughtful.
"You know, I have a lot to think about now. I will see you tomorrow. But Tris?" she asked when she reached the door. I looked at her questioning.
"Come sit with us again. I miss you. We miss you. You do not have to talk to Four. And you can even bring Eric with you." Christina begged. I nodded laughing and hugged her good-bye.

As soon as she left, I packed some overnight bag and went to Eric's door.
"You wanted to see me?" I asked seductively when he opened and let me in.
"You have no idea how much." He whispered and threw me over his shoulder.
He dropped me when we reached his guestroom.
"Get undressed." He ordered, while also removing his vest shirt and pants. I looked around and could tell that he put some sort into this. There were already some items laid out on the bed near the posts.
"Lay down!" he commanded with flashing eyes. Quickly I followed this order and lay in the middle of the bed. Eric moved to cover my body with his own and kissed me passionately. Today he did not spend a lot of time exploring my body, but quickly trailed kisses across my chest and down my stomach to my lower lips. With his tongue and fingers he explored me boldly before spreading some lube on his hands and massaging it gently into my skin in the whole area. It felt a bit strange, especially when he spent a lot of time massaging my back entrance, but his tongue around my clit was enough to divert my attention away.
I gasped surprised when something cold and hard was pressed inside me however. This I did notice. I whined Eric's name, but he shushed me quickly with a kiss. Then he explained to me that it was a butt plug. The one currently penetrating me was the smallest kind. He would gradually push bigger ones inside me and thus prepare me to have anal sex with him one day. While he was explaining all this to me, he was laying on his side closed to me and kissing me in between his words. His hands were trailing all over my naked body, until one quickly ended up between my legs, stroking me, circling my clit and playing with the plug. It was driving me crazy.
When he had finished the explanation, Eric picked up another object I had not seen before. By what he had described before I gathered that this must be a dildo. He used this to tease my tender folds before pushing it slowly inside of me. He moved it in and out for a bit until I was moaning in pleasure. Then he stopped with that thing pushed deep inside of me. I opened my eyes in surprise and saw him sitting up beside me. I looked at him with a mixture of need, disappointment and curiosity.
"You were a bad girl today. You made me jealous of the little Candor girl. And I think that you need to be punished for that. Do you agree?" he asked me with barely contained excitement.
My head was reeling. He wanted to punish me? What was he thinking about? Did I want to be punished?
"What do you mean?" I croaked. His eyes blazed and he crooked his finger at me to order me over. Carefully I scooted closer to him.
"Do you trust me?" he whispered in my ear when I reached him.
I did. Somehow in the last few weeks he had gained my trust. So I nodded.
Immediately the world tilted. Before I knew what had happened I was positioned across Eric's lap and his left arm was pushing my upper body down, while his right arm stroked my butt. Suddenly there was a loud slap. I tensed at the sound but I only felt a slight stinging sensation on my backside. I realized Eric had not hit me with full strength but only enough to get my blood to rise to the surface of my skin. When my head had processed the absence of pain I noticed other sensations. Eric had aimed the slap directly to the apex of my thighs and had managed to hit both the butt plug and the dildo. Both moved deeper into my body before sliding back into their previous position.
"I want you to count the strokes." Eric said quietly.
"One" I whispered still a bit overwhelmed by all the sensations in my Body.
Slap. This time I was concentrating on the sensation inside of me. I moaned before I counted.
Eric kept hitting me stroking my butt in between to help me get used to all the sensations.
He had increased the intensity with each slap. I was not able to feel any pain through all the pleasure though. The by now familiar build-up of an impending orgasm had started, but when I reached the count of ten Eric stopped and removed the dildo from my body. I whimpered in despair. I had been so close. Eric chuckled and directed me to lay on my stomach in the middle of the bed. It did so immediately hoping that he would hurry up. He positioned himself kneeling between my legs and raised my hips of the bed before pushing inside of me in one stroke. I screamed at the sensation. With this angle the penetration was deeper than ever before and couple with the sensation of the still present butt plug which had been pushed also deeper inside me I felt so wonderfully full and complete. In no time I came screaming Eric's name. However he was not done with me yet. He pulled me up so I straddled him with my back to his chest without ever severing the contact. In this position he put one hand around my neck and pushed my chin to the side so he could kiss me while his other hand started kneading my breasts. It was too much. I was on sensory overload and I felt that this was going to tear me apart. I whimpered Eric's name and asked him to stop. He growled in my ear and painfully pinched my nipple. The pain shot straight to my core and combined with the pleasure growing there again. All the while Eric was thrusting inside of me hard and I could feel the build-up stronger than ever. When I came I passed out from the pleasure of it.

I woke up in Eric's bed. He was laying below me and had me draped across his chest all the while stroking my back. When he felt me stir, he bend down and kissed me tenderly.
"You are amazing Tris." He whispered and his voice was full of admiration.
"When I think back to the little stiff that jump first from the building it is unbelievable how much you have grown. If anyone told me back then that this proper little girl from Abnegation would let me spank her I would have laughed in their face."
"And what would you have done if they told you that I would enjoy it?" I asked teasingly.
Eric looked at me smiling.
"Tris, I love you." And he kissed me with a tenderness that almost broke my heart.