Sex with Nelf turned out to be an amazing experience. She had organized her living quarters on the first floor of her house, while she kept her work-related stuff on the ground level. All we had to do was to go up the stairs - however, that task seemed easier in theory than in practice. I was tired (gulping down a few meters of chain is hard work, I tell you), and even standing up was difficult - the whole outer part of the chain shifted up a link's distance, causing arousing friction on my nipples and between my pussy lips, and pulling a link out of my anus. I would have fallen if not for Nelf's quick help.
"Don't worry, sweetie, I got you. I got a massive bed upstairs, and plenty of toys to play with. All you have to do is to climb a few stairs," Nelf whispered into my ears. "I will fix the mess in my room, come, and follow me. You can take your time, get used to these feelings. They are now a permanent part of your life".
She playfully tugged on the left-part of my chain, gently, so it did not hurt, then she rushed upstairs. I tried to follow, but almost lost my footing again, the feelings were so intense - part of it arousing, the other part of it the slightly uncomfortable, slightly handicapping tugging-feeling. I took a deep breath (and regretted it instantly, as it caused extra stain on the chain via my boobs), then started walking towards the stairs, one step at a time. Baby steps.
I figured that if I let my head hang lower than usual, the feelings were less intense, so I did just that, and arrived safely to the staircase. I grabbed the railing and looked up, but did not see anything special up there, partly because moving my head intensified things. Climbing up caused no further problems. When I finished my climb, I carefully looked around.
The living quarters of Nelf's house was cozy, much less sterile and rigid, unlike the hospital-like workshop part. The whole space was dominated by the queen-sized bed at the middle, and crowned by Nelf's slightly skinny but still sexy as hell butt sitting on it, only covered by a flimsy thong. Apparently "fixing the mess" meant stripping, and also included strapping on a big dildo harness I realized as she turned around.
"Oh, you adapt fast," she smiled coyly. I got a good look at her as she strode towards me. I have already seen her boobs, as she already stripped to the waist as I was gulping down the chain, but seeing them in motion I realized I should have paid more attention to them. They were beautiful, and insanely perky, their chocolate colored nipples perking proudly, showing their strength by carrying their huge barbells. Nelf was pretty skinny overall, she lacked the toned, subtle muscles that I had, but that did not stop her from being sexy as fuck. Her crotch was, however, hidden from me - her strap-on thong panties blocked my view of it, so my curiosity was left unsatisfied - piercing professionals usually had pretty extreme metalworks down there. No matter, the massive strap-on she wore promised more than enough compensation.
She pulled me down on the bed, then immediately turned towards the classic 69 position. That gave me the opportunity to examine her crotch. However, when I tried to move her thong out of the way, I failed - the small piece of clothing was apparently stuck to her groin, also her black fake cock seemed impossible to move away from the point where her clit was supposed to be under the flimsy underwear.
"Hey, careful down there - if you will be rough, so will I be."
Uh-oh, she probably had quite an advantage over me, me being flossed and all that. She was quite content on just licking my labia lips until now, but after this, she started to pull aggressively on my chain around my perineum, yanking multiple links out at the same time. I was soon lost to the sensations, Nelf's crotch temporary forgotten - the way my chain just emerged from my body, only to be pulled back as soon as Nelf let it go, was incredibly stimulating both physically and mentally. Nelf's other hand went straight towards my clit, replacing the friction of the metal with her hand, probably to save it from being rubbed raw so early in the session. When she licked right into my pussy with her skilled tongue, around my urethra, I instantly came.
After a few seconds of recovery, I opened my eyes to the sight of a giggling Nelf, who apparently turned around while I was out of it.
"I envy you, I really do," she murmured into my ears while she lovingly caressed my hair. "I am not brave enough to get chained, so I will be missing most of the sensations that you now are able to experience. How do you feel? I am so curious!"
I contemplated her question for a few moments; my hands involuntarily went right for her boobs, caressing her nipples.