The sight of the drops of the water running down on Loki's back, mixed with the sound of the small sighs and gasps coming from Pepper were intoxicating. Tony couldn't even see that much of the intimate act; just Loki's head moving and Pepper reacting and, yet, it was so incredibly erotic.

Eventually he couldn't take it anymore and he finally moved. The moment he touched Pepper she moaned and opened her eyes and he could all but feel the heat. There was no danger of overload anymore, but Pepper's eyes were red at the centre.

"Mind if I join in?" he asked as Loki looked up at him as well.

"Please do," Loki replied and Tony carefully eased himself between Pepper and the wall, urging her round a little so there was room.

Pepper leant against him, her back plastered to his front and he wound his arms around her body, gently caressing one breast. As she put her head back beside his, Loki smiled up at both of them and moved back in. Pepper's legs were further spread this time, giving Loki even better access and the way Pepper moaned told Tony, the demi-god was making good use of the space.

His cock was already hardening again (something he was actually surprised at since he wasn't twenty anymore, but was also not arguing about) where it was laying against Pepper's butt and he kissed her neck while carefully teasing first one nipple then the other with his fingers. It was something he knew Pepper liked and he wanted to make sure she had the very best experience he and Loki could manage. Since Loki was clearly doing his part, Tony was not about to fail in his.

He could feel Pepper trembling. That was a good sign, a very good sign, because it meant she was close. Tony had made it his business to learn everything he could about Pepper in their time as a couple; he'd made the mistake of forgetting so many times before and he didn't intend to do it ever again. The ways Pepper reacted when she was touched were some of his most cherished stored facts. They were also some of the most useful.

Lifting one hand, he gently canted her head to one side, stroking with light fingers along her jaw as he nibbled along the shell of her ear. Pepper loved to be caressed and it had taken long hours of patience to find out her favourite spots. In this Tony could be almost totally focused; only that little bit at the back of his brain was doing anything else.

Pepper's trembling was becoming uneven now and he smiled against the side of her neck; he could tell she was right on the edge.

"You are so very beautiful," he whispered quietly and that did it.

The trembling became an all-out shudder and Pepper gasped, gripping his hip with one hand almost so hard it was painful. The way she writhed against his cock had his eyes rolling back into his head for a moment and he moaned into her shoulder as she continued to come. There was no way in hell he deserved these moments of beauty and sensual passion, but he was far too selfish to ever let them go and he held Pepper gently as she rode out her orgasm. Loki didn't stop what he was doing either, continuing to drive Pepper on until she whimpered and tried to draw back.

"Oh god," Tony said as his cock was very firmly trapped between their bodies.

"Yes?" Loki responded, coming to his feet in what could have been one thoroughly annoying, graceful movement.

However, the superior smirk Loki was trying to keep in place was twitching into a real smile and Tony suddenly understood why Loki didn't make a habit of bedding everyone in Asgard. Loki's guard was at least partially down; it was as clear as day, and Loki hadn't even been the one coming.

"I could get used to this," Pepper said and reached out, pulling Loki towards her and kissing him very passionately.

This time the way she pushed back against him had Tony thinking it was one hundred percent deliberate and he wasn't about to complain.

"Shall we take this somewhere more comfortable?" he asked, because his head was now full of vivid mental images and a shower cubicle, no matter how big, was restricting to trying them out.

By mutual agreement they finished washing off and then climbed out into the bathroom as JARVIS shut off the water. However, Tony never had a chance to reach for a towel. Loki waved his hand, his eyes flashed green and Tony shivered from head to foot. It was only as the shiver passed that he realised he was completely dry.

"Neat trick," he said, grinning, "must be useful when it rains."

"Thor always seemed to find mud when it rained," Loki replied; "it is less useful then, although somewhat amusing. His armour once completely seized."

The mental image of Thor covered in dried mud all but rigid was undeniably funny, so Tony laughed. He would have paid money to see it for real.

"Don't suppose you have a picture of that in the family album?" he asked hopefully.

"Not precisely, but I should be able to recreate the moment visually when we are not so busy," Loki replied.

"Oh hell yes," Tony said.

From the look of things, the spell hadn't just dried either, it had styled as well because Pepper's hair was arranged exactly the way she had had it before the shower and Loki's long hair was dry, clean and pulled back in a braid.

"Bedroom," Pepper said and then gave him a great view by walking towards the door.

He let Loki follow first and was rewarded by another fantastic view, at which point he decided to catch up before he missed anything.

"Okay, awkward conversation number two," he said as he followed Pepper and Loki into the other room; "I think I know the answer to this, but I'm going to ask just in case. Loki have you ever had sex with a man?"

"Yes," Loki replied, "more than once."

"Cool, do you prefer pitching or catching?"

"I have never trusted another man enough to catch," Loki said, without trying to pretend the language was confusing.

Those were the answers Tony had been expecting and he was perfectly okay with that.

"However," Loki continued as Tony opened his mouth to respond, "I would not be averse to trying something new."

That was a surprise and Tony had to rearrange his mental map a little. He gave Loki a nod, because that statement definitely deserved an acknowledgement, but he didn't want to embarrass the other man by actually talking about it further right that moment. He was pretty sure that from Loki, something along those lines was the ultimate compliment.

"And, Pep, what are you in the mood for?" he asked before he could say something stupid and wreck the whole moment.

Walking over to the side of the bed, Pepper sat down and then looked back at both of them with a smile.

"I think I mentioned how much I enjoyed watching you two in the shower," she said, "and I'm feeling so very relaxed at the moment. Why don't you start?"

The little smile on her lips and the way she stretched her long legs onto the bed had him biting his tongue in anticipation. If Pepper wanted a performance, a performance she would have.

He glanced over at Loki and lifted his eyebrows and Loki twitched an eyebrow back; Tony took that as an okay. He was pretty good at speaking Loki after the mind meld and then two weeks to figure out what was correct and what was just his brain filling in gaps he hadn't known were there.

"What would you like to try first?" he asked, stepping into Loki's personal space.

"What are your views on foreplay?" Loki asked.

"Always fun, sometimes necessary, sometimes not," he replied with a grin.

"Would you mind if this time it was not?"

"Given what we've just been doing, hell no," he said.

Loki did the whole handwavy, glowy eye thing again.

"Then I believe I would like to feel you inside me as quickly as possible," Loki said, which sent all sorts of messages straight to Tony's cock.

"Well you'll need some prep," Tony replied; "no skipping that part between guys."

"That is what I just did."

"What even the stretching, because there I'm not down with hurting people?"

"All of it," Loki assured him.

The idea that Loki had just prepped himself for Tony with a spell was surprisingly arousing and Tony felt slightly weak at the knees. He had had no idea that could be a kink.

"Lube?" he asked.

"Taken care of."

"Okay," he said, "then I'm all yours. How do you want to start?"

Loki didn't reply and simply climbed onto the bed on his hands and knees. Tony could so work with that and followed Loki's lead.

He could barely believe what was on offer. It wasn't often he had to mentally take a step back and pinch himself and the last time had been when Pepper finally said yes, but he was having one of those moments right that second. Loki was right there, ass in the air, legs spread, offering him something Loki hadn't offered to anyone else, and for a second, he doubted his right to take it. It didn't last long, after all he had the biggest ego in the room, but for a moment he hesitated.

The spell Loki had used was good. As Tony pushed in, he slid into tight heat, but there was no tense resistance.

"Oh god," he said, enjoying the slick warmth even as the back of his mind wondered what it would be like if Loki used the spell on him.

He couldn't help it, even as most of his brain focused and the very real, very intense sensations of the present, the rest had to speculate.

"You okay, Snow White?" he asked.

Loki kind of hummed in return, a low rumbling sound that Tony felt as well as heard. It almost sounded like a yes, but it also had a 'oh my god what is happening' quality that he had experienced himself on occasion when trying new things. He could only imagine how weird it could be finding new experiences after being alive nearly a millennium.

"I think that was a yes," he said, running his hands soothingly over Loki's back, "but, sorry, gonna have to get a definite from you before I carry on."

"Yes," Loki said in a very tight tone.

"Okay," he replied, "just let me know if anything's too much."

Loki hummed again, but this time Tony took it as agreement. He glanced over at Pepper who smiled at him approvingly. Holding Loki's hips, he carefully pulled out a short way and slowly pushed back in. His eyes fluttered closed as the wonderful sensations that sent around his body. Some people would have thought him too egocentric to recognise what a privilege he was being given, just how much trust was being shown, but he wasn't, and it meant a great deal. For Tony there were two types of sexual encounter; those that meant something and those that were just some fun. This one meant something and that made it all the sweeter.