Mikasa didn't know what to say, but Leo took her pussy by a surprising thrust, and she screamed with wide open eyes and mouth, "Ahhhhhhh!"
"Mikasa!" Eren was about to pass through the curtain.
"Don't come inside!" Leo shouted.
Mikasa turned her head back to him with disbelief. She could have come up with an excuse for the scream from earlier, but now Leo had done it for good.
"Leo? What are you doing here?" Eren sounded confused and reached a conclusion.
But Leo was faster than him, "We are sharing a bath, brother. Both naked. I don't really wanna show my naked side to you. That will be embarrassing."
"What-what are two even doing naked in there? Are you--" Eren was almost choking.
"We are doing a hardcore bathroom exercise. You know, new methods for physical exercise develop just like science. It is called 'Wet Pounding' and performed by two naked people. It is really effective but embarrassing too. So sister-in-law is helping me out." Leo and a tricking explanation could touch the stars.
In this world, such methods were not unheard of.
But Eren wasn't so easy to convince, "What nonsense? I have never heard of it. I am coming inside."
"Really? Even though it is a physical exercise for training the body. I don't think you will like to see me naked with my sister-in-law. If you don't believe me, then do it with her after I am done with her. It just slaps different parts of the body. At first, you feel pain in your muscles. But when those painful muscles recover, they become stronger than before. But I doubt you will like such a method unless you are a masochist. So, do you still doubt us and wanna look at us to embarrass us?" Leo threw every bullshit he could think of.
After a small silence, Eren spoke in an uncertain voice, "I... Understand. But you should have discussed with me first, Mikasa."
Mikasa was dumbfounded that Leo's lie worked. Now, she had to do her job. "What are you talking about? I am a gym trainer. A pro."
'Yes. Pro at being a cheating wife, ' Leo kept the thought to himself.
"I saw making him progress in his titan power. When he asked for my help, I didn't decline him only for your sake. But fine, if you don't trust me, then I won't help him again. Leo, go upstairs to the bath and never come to me for help, " Mikasa said that without flinching.
"Okay. Sorry, sister-in-law, I caused you so much trouble, " Sounding sad and guilty, Leo got along with the plot.
"Ugh! No... I mean, it is not that I don't trust you guys. But this method... Wet Pounding... It sounds so sensual. And you two were making such strange sounds. Is it really a valid method?" Eren could not see into people's past or future in this world and Leo was taking advantage of this fact to the fullest.
"We are testing it right now. We will tell you after we are done. You should leave otherwise you will be uncomfortable, " Leo blurted out without any fear.
Now that Eren was convinced to some degree, Leo didn't hold himself back and thrust his cock deep in Mikasa's pussy again.
Splash!
"Ahhhhhhh! Leo!" Mikasa could not believe how brave and shameless he could be.
"What was that?" Eren asked.
Leo grabbed Mikasa and turned her body to the curtain, then forced her to bend, making her face out from the gap between the wall and the curtain, "Here look at her, do you still doubt us?"
"Huh!" Mikasa was facing the doubtful Eren with a flushed red face with shame, "Hi!"
"Hi, you look in pain, " Eren observed her face, but couldn't tell the reason why her face was like that.
Slap!
"Ah!" Mikasa screamed again, scared to death.
"See. It is just slapping a wet body. That's why it is called wet pounding. After I am done with her, she will be slapping my muscles. So here I go, no mercy on you, sister-in-law. " Leo decided to enjoy it.
So he kept thrusting in her pussy and making her moan right in front of her husband.
Splash! Splash! Splash!
"Hngh! Ha! Ha! Ha! Ahh! Leo! Stop it! Ha! Hngh! Eren! Ha! Ha! Is! Watching! Ha! Ha!" She was no longer in control of her voice, only her panting and moaning could be heard in the bathroom.
Eren was having a hard time deciding what was actually going on, so he decided to observe a bit.
He could see a side of Mikasa that he had never seen, 'It is definitely not what I think it is. So, Leo is just slapping her muscles. But still, they are naked. Is it really alright to leave things like this?'
While he was not able to decide what to do, Mikasa was taking the rough pounding from Leo behind the curtain.
Splash! Splash! Slap! Slap!
Fucking plus ass slapping... What a great combination.
"Oh sister-in-law, how is it? Am I too rough? Your body is really in great shape. Brother, you are really lucky to have such a gorgeous wife, " Leo complimented her.
"Ahh~ hngh~ You can be... Ah~ rougher. Ah~ just you wait... Ah~ Ha! Ha! Ha! For my turn..., " Mikasa didn't dare to open her eyes, she just supported herself with her right hand on the wall and gripping the curtain with her left hand.
"I know, she doesn't look bulky like men. But she has well-toned muscles. You can be rougher with her, " Eren said with pride, while sweating a little.
He was having a hard time listening to Mikasa's moans that screamed like fuck! Fuck! Fuck!
Not 1-2-1 you hear in the gym.
"Heard you loud and clear, " Leo grabbed Mikasa's waist tighter with his left hand and inserted two fingers in her anus that hadn't been touched by anyone until now.
"Ahhhhhhh!" Mikasa gave Eren a frightened look.
As much as she wanted to stop Leo, she couldn't think of a way to do so.
Splash! Splash! Splash!
"Ha! Ha! Ha! Ugh-- god damn it! Leo-- you are overdoing it, " She was helpless. Leo's thrusting was keeping her hold onto the wall and curtain and she couldn't speak freely because of Eren.
"Hahaha! Mikasa, you are getting beaten so badly. Shall we do it tomorrow? I really want to know how beaten and roughed up you look right now, " Eren had taken a beating from her before, so he thought of taking revenge on her.
"Shut up!" Mikasa scolded him with an angry face, but then Leo's thrusting came, "Ha! Ha! Ha! If you wanna pound me... Ahhh~ ha! Ha! Then be ready for taking pounding from me, " she warned Eren.
Eren lifted his hands in surrender. He was a fighter but not an M (masochist).
"Argh~ get ready, my dear sister-in-law, last pounding is coming with my essence (cum), " Leo was going to creampie her.
"Do it! Bastard! Do your worst! Pound my ass! Harder! Ha! Ha! Give it to me! Pound me! Oh Leo! You pound me so much better than Eren! Ahhh~ My husband isn't even brave enough to pound me like you do to my ass! Give me your essence! Filled me with it, " Mikasa was lost in lust, she didn't care anymore. She would do anything to keep feeling this sinful lust.
"Oh my god! Mikasa, you can really say bad words. I had had enough. I am leaving, " Eren was no longer doubtful, but he was still uncomfortable with it.
Mikasa was relieved, but not for a moment.
Leo, the guy who was crafty like Loki, took out his dick from her pussy and inserted it in her anal hole a bit, making her grasp and choke a little, "Ack!"
What she feared the most had happened. Her anal virginity was taken by Leo right in front of her husband.
And she couldn't even back down from it.
"What? What happened?" Eren was perplexed at her sudden change of expression.
"Ora!" Leo pushed his dick deeper in her anal hole.
Splash!
"Ahhhhhhh!" Mikasa screamed louder than ever, scaring the shit out of Eren.
"What the hell! Leo! Go easy on her. Even if she is stronger than her, she has limits, " Eren had no idea what effect his words had.
"Don't worry, I will take care of your wife's ass. She will be in pain for a while, but she will be pleased with the result. Now, leave. Because we are going to be louder, " Leo was grinning like a devil.
Mikasa had her mouth and eyes shut because of pain.
A/N: Don't be rough at first and take care of precautions.
Klik-klak!
Eren finally left. And Mikasa finally straightened her back and turned to Leo with a tired face, "Leo, you have gone too far. You can't do this."
"Oh! What a pity! I thought you wanna do it with me since it will make you feel good with enough pounding. Forget it, if you don't wanna do it, " He slowly began pulling out his dick from her tight anal hole.
"Ah~ " Mikasa endured the pain with a pondering expression.
"Stop!" She stopped him before he could take out his dick completely from her anal hole, "I wanna do it too. But it hurts. So can you do it slowly?"
"Of course, but I think, if you lie on the floor, it will be less painful, " Leo suggested, and Mikasa also found it reasonable.
She lay on the floor, breasts pressing down on the wet floor. She stretched her anal hole with both her hands, "Here, be gentle with me."
(TT: Wow! With this she will be ready for fuckfest.)
Leo went on top of her, supporting his upper body with both arms and positioning his dick to her anal hole.
Without another second, he pushed his dick in her inviting anal hole a bit first.
"Argh~" She was taking it better than Leo expected.
So he pushed deeper, bit by bit, until he was balls deep, and ejaculated because of all the tightness.
Splurt-splurt-splurt!!!
"Ah~ This feels great. I can still go on. So lemme go for second round and make you cum too, " Leo knew that women don't cum easily in real life. Maybe with magic, it is possible. But he didn't have such a skill. He was going to pound her until she hit ninth heaven.