"Oh my god!" Natsu shouted at the top of his lungs. He just had to move away from that door and needed moment because he couldn't believe what he saw. It was the most unexpected thing he ever saw.

"Who's there?!" Igneel shouted as came out with a robe on and got water everywhere. He was expecting an intruder he was ready to kill, but it was none other than Natsu. Layla came out with a towel on and was surprised to see Natsu himself. "Natsu?! You're home!" He said with joy as he wanted to hug his son.

"No! Dad, I love you, but don't touch me!" Natsu demanded as he kept his hand up and kept his father away.

"Hi, Natsu..." Layla said as she was rather embarrassed about the whole situation.

"Hi, Mrs. Heartfilia. Long time no see. What the hell is going on?!" Natsu said as he went from casual to freaked.

"We weren't expecting you home until tomorrow." Igneel said.

"I came back early to surprise you! Instead, I get the biggest surprise and see you in the bath with my ex's mother!" Natsu said.

"What were you doing peeping on us?!" Igneel said.

"Don't turn this around on me!" Natsu said as he was a little frantic. "What the hell is going on?! What are you two doing together?!"

"Okay..." Igneel said as this was hard for both him and Layla. "We were hoping to tell you and Lucy, we've been wanting to, but there was never time. Layla and I have been seeing each other." Natsu couldn't believe he was hearing this. He had no idea his father was dating, let alone it was with Layla Heartfilia. "It's a funny story..." He laughed as he tried to explain this to Natsu, but Natsu wasn't enjoying this.

...

Flashback

Now that his son was off at college, Igneel had a lot of time to himself. His son was out of his house and he had a bit of freedom. As much as he loves his son, raising a kid is a lot of hard work and a parent could use a nice time to just relax. That's what Igneel planned to do.

"Hi. I'm checking in. It should be under the name of Igneel Dragneel." He said as he was checking into a hotel with great reviews.

"Of course." The desk clerk said as she got his data off the computer. "I just need you to sign here." She said as she passed him some finishing paperwork. "Are you here for vacation? Waiting for family?"

"Nope. My son is out of the house and off to college." Igneel said. "I came here for some rest, fun, and relaxation."

"Well, we have great service for that. We have our own bathhouse with some soothing mountain water from a spring at just the right temperature." The desk clerk claimed. "We also offer fine room service with beds that are greatly comfortable."

"That all sounds nice." Igneel said as he was going to enjoy his stay here.

"Enjoy your stay, sir." The clerk said. Igneel managed to check himself into the hotel and planned to do all the stuff he was told about. After years of hard parenting, all Igneel wants to do is feel relax and get the most of this. The first thing he did was went to check out the bathhouse. The water washed against his skin felt so well. It was at the perfect temperature with steam filling the air. What made it even better was that he had a clear view of the night sky with all the stars shining right over head.

"This really does feel nice." Igneel said as he sat back against some rocks and felt like he didn't have a care in the world anymore. The best part was that he had the place all to himself. It almost seemed like nothing could ruin this moment. Although, there was something he wasn't aware of at the time. As one of the hotel employees walked by the entrance of the bathhouse, she noticed something was off with the signs of both entrances for the men's and women's bath.

"Oh dear. Who did this? This could be a real problem." The employee said as she took the signs that marked the men's bath and the women's bath. There was some sort of mistake and they were switched. She switched them back, but that meant that Igneel was actually in the women's bath. Igneel didn't noticed a thing and just enjoyed himself until he heard someone.

"Huh?" Igneel looked towards the entrance. He thought he was going to have the place to himself, but it looks like someone was joining him. He expected it to be another man, but he noticed the figure through the steam looked a little...curvier. When the person walked through the steam enough, he got a clear view of it being Layla Heartfilia herself. She was standing right in front of him and was exposed to the elements. "Layla?!" He said with complete shock. That was when Layla first noticed him.

"Igneel?!" Layla said. Both of them took a moment to register what was happening right before them. When Layla realized she was standing in front of this man in her birthday suit. She was about to scream at the top of her lungs, but Igneel acted fast as he got up and placed her hands over her to keep her quiet.

"Don't scream or you're going to cause a scene!" Igneel said as he kept her mouth quiet until she settled down. Once she did, she knocked his hands right off her.

"What are you doing in here?! This is the women's bath!" Layla said.

"The sign said this was the man's bath!" Igneel said as this was an embarrassing situation. They tried to keep themselves covered with their arms, but that left little to the imagination. They might have known each other, but they didn't "know" each other.

"Igneel, what are you doing at this hotel?" Layla asked.

"Natsu left for college. I came here to take some time off." Igneel said. "Now that I know he's able to take care of himself out there, I thought I treat myself. I also might wanted to distract myself from how much I was going to miss him."

"I came here for the same reason because of Lucy. She left for college herself." Layla claimed. This was an awkward situation for both of them. "Igneel, I don't mean to be rude, but you should just go."

"Good idea. I better get out of here before anyone else walks in and sees us like this." Igneel claimed.

"Yes, but it's not just that." Layla claimed. "Our children dated each other, but we both saw how that turned out."

"What? That doesn't mean you and I can't talk to each other." Igneel said.

"Perhaps, but my daughter isn't all that happy with Natsu and I'm trying to respect her feelings." Layla said. "Your son did break my daughter's heart. She was brave enough to leave in her state, but you didn't see what she was like."

"Hold on. My son never meant to do that." Igneel said. "You know it was his dream to become a fireman and he had a golden opportunity. He couldn't just give it up."

"Maybe so, but my daughter expected they would be together." Layla said. "She would have been supportive, but Natsu shouldn't have told her at the last minute."

"True, but your daughter should have at least tried to see it through your point of view." Igneel said. The two of them would have kept arguing and talking about it, but they had a problem. They heard a few more people coming in the bath and that was bad news for them. A few more women stepped in and joined the bath, but they didn't get to see a thing. Without even thinking, Igneel just grabbed Layla. Fortunately, there was a large rock in the water as well and it was large enough for the both of them to hide behind.

"Why did you pull me back here?" Layla questioned.

"I'm sorry, I panicked." Igneel claimed as they kept their voices down to make sure they wouldn't get caught.

"Well, now what? We can't go out there now." Layla asked.

"Just keep still and quiet until they leave." Igneel said as he held on to her and tried to keep them from being noticed. There was just one problem. They were in a compromising position with how their naked bodies pressed against each other so closely. It was then that they noticed something about each other. Igneel noticed how curvaceous and beautiful Layla's body is and she noticed how muscular Igneel's body really is. Igneel looked down and saw her breasts pressing against him. He tried not to think about it, but it was hard not to. That caused Layla to feel something poking and sliding against her legs. Both of their faces turned red, but something was stirring with both of them. They looked right into each other's eyes as they noticed both of their faces turning red, but also felt a trance. The compromising position, the fear of getting caught, and humanly desires they have triggered something. Layla's hand slid up his hard muscles over his chest and to his hard arm while Igneel slid his hand down her back against her smooth and soft skin. The two of them even licked their lips with anxiousness as they just couldn't resist what they were feeling with them closing the distance between their lips. None of the women in the water suspected anything, not even the pair kissing each other behind the large rock.

...

Igneel's Room

Once the coast was clear, the two grabbed their robes and didn't want this to end. They came barging in Igneel's Room and continued their passionate kiss. Once the door was shut, they got rid of their robes and both stood in the nude once again with Igneel being pushed against the wall. The two were fierce with each other as they slid and scratched their hands against the other's body. Pushing off against the wall, the two of them quickly moved to the bed with Igneel pushing Layla down. She actually tried keeping herself covered with her arms and legs.

"Heheh..." Igneel found that amusing. He pulled her legs apart and gave himself access. Once he was, he didn't waste a moment as Layla felt something like leather stab against her. She felt Igneel push against her at a steady beat and it increased. He grabbed her by the waist and smashed against her. Igneel kept going against her as he watched her still covering her breasts. Wanting to see them, he grabbed her arms and pulled them apart. Once he had a view, he grabbed a hold of both of them in a firm hold and gave them a good massage.

"Oh! Ig... Ig... Aw!" Layla screamed as she couldn't hold back the intense feeling of pleasure she had. Igneel was like a wild animal and she loved the kind of affection he was giving her. Igneel added to it as he placed his lips against her breast and sucked against it. As Layla scratched her nails against his back, he switched over to the other. Igneel didn't slow down the least bit as Layla felt pleasure all around her body. Igneel stopped for a moment as he slid his tongue over her body and stopped once he reached her neck.

"Damn..." Igneel said as he thought Layla tasted sweet and loved her body. He grabbed her arms and pinned them down to the bed and continued with what he was doing as he pushed his pelvis against her at a strong and fast beat.

"Aw! Aw!" Layla cried as she felt like a drum being beat on. The two of them looked right each other as Igneel kept beating against her. The two of them ended up closing the distance and smashed their lips against each other and were slurping the other's mouth. The two of them didn't dare separate nor slow down until the end. Layla's body tightened as her floodgates broke. The same thing happened to Igneel as his grip on Layla's arms got stronger. He could have crushed them if he wanted. When they both rode it out, Igneel rolled right off her and both of them were breathing hard.

"Oh my god..." Igneel moaned.

"Oh my god..." Layla repeated as they both apparently loved what they just did. "That was like... Wow... I'm not one to be vulgar, but you were like a wild animal that really made my body...tingle."

"Tingle? Really? That's it?" Igneel questioned.

"For lack of a better word. It was really... Oh..." Layla moaned.

"You're telling me." Igneel said. Both of them never expected to feel such intensity with each other, but they never thought they would find themselves in this position.

"Uh... What now?" Layla asked now that things were starting to settle down and she thought more clearly.

"What do you mean?" Igneel asked.

"Igneel, our children dated each other and aren't on the best terms right now." Layla pointed out. "As amazing as that felt, what exactly do we do now? What if they find out about this?"

"Well, can this just be our little secret. I mean...this is just a one-time thing, isn't it?" Igneel said.

"Yeah... You're probably right." Layla said as she rolled over to him. "It was just a one-time thing." She said as she placed her hand right over his chest. That's what they agreed, but it was all starting to come back to them again as they really thought about it.

"One-time thing..." Igneel mumbled as his hand slid down her back and sent shivers down her spine.

"One-time thing that was fun..." Layla said as she slid her hand further down him.

"One-time thing that was fun, amazing..." Igneel said as he tried holding her closer to him.

"Fun, amazing, and..." Layla stuttered as her hand reached down his waist and felt something hard standing up again. "Igneel... Maybe... Maybe we could have dinner together."

"You mean like a date?" Igneel said.

"Just a dinner...that might lead to something..." Layla claimed.

"Only if we skip straight to dessert." Igneel said as he kissed her passionately once again and the two of them went in for a second round. From there, the two of them kept getting closer and closer to each other. That's how it all started for them and their kids didn't know about it for the past four years...until now.