Yoonseo used gel on hole as he rubbed it in.
Yun grabbed Yoonseo's ass, "Your ass is so soft uncle. Makes me wanna slap it."
Yoonseo flinched at the comment.
He struggled with his fingers as Yun was fondling his ass. Yun saw that he is having a hard time, "Let me help you uncle. Pass me the gel over."
Yoonseo relaxed as he passed the gel to Yun.
Yun poured gel into his hands, "Did I scare when I said I want to slap your ass?
I won't do anything you are scared of uncle. Relax, we will only do what you want. I am a good partner."
Yoonseo breathed in relief after he heard that. His muscles loosened from being stiff and tensed.
Yun smiled after seeing him relax. He started applying gel to the hole.
Yoonseo was moaning as he was being fingered.
After Yun was done, he turned Yoonseo around.
Yoonseo went in for a kiss as he moved forward. Yun swooped into a kiss.
They kiss each other as they interwine their tongues. Yoonseo sucked on Yun's lower lips as he is licking all over.
Yun spread Yoonseo's thighs, "I am going to put it in uncle."
Yoonseo hugged Yun as he was penetrated.
Yoonseo gasped when it was in. Yun kissed Yoonseo's cheek, "Good boy."
Yoonseo blushed hard. To hide his embarrassment, he kissed Yun's on his shoulders and collarbone.
Yun pounded Yoonseo as he went in and out. Yoonseo was drowned in pleasure.
Yun kissed Yoonseo's arm and went up as he kissed his collarbone, his neck and finally his cheeks.
Yoonseo was gasping for air as he spread his legs more. His ass was red from the pounding.
Soon Yoonseo cum.
Yoonseo felt dizzy, "Yun, I feel dizzy. I can't breathe. Let's get out of this hot spring."
Yun kissed Yoonseo's lips and blew in some air, "Here's some air uncle. Let's get you out."
Yoonseo and Yun get out. Yoonseo lay down in the changing room as Yun drapes Yukata on himself.
Yoonseo recovered a little after. Yun helped Yoonseo put on his Yukata.
They went to their room. Yoonseo went out to the balcony to breathe in fresh air.
Yun came out with bottle of water, "here, have some water uncle."
Yoonseo grabbed the bottle and drank from it, "Yun, I just realised that you didn't cum. Let me make up to you."
Yun shook his head, "I could tell that it was your first time being bottom. It was too risky to do it in hot spring."
Yoonseo leaned forward, "I thought I would seduce you by showing my figure. But you seduced me instead.
I didn't think that we would end having sex in hot spring."
Yun held Yoonseo's hand, "well, it was easy to clean you up in that hot spring. Not a bad experience for me."
Yoonseo blushed, "let's do it in bed now. You didn't get to cum."
Yun tilts his head, "are you okay now? Feeling breathless?"
Yoonseo replied, "I am okay. How about we do it in the balcony? No one will see beyond this wall if we laid down."
Yun pinched Yoonseo's cheeks, "Always choosing risky options are we?
I want to try it. Here's a full moon and gentle breeze."
Yoonseo laid out a futon on the balcony as they huddled together as they untie their Yukata.
Yun puts it in second time as Yoonseo laid down. Yoonseo grabs Yun's face closer, "Yun kiss me."
They kiss each other. Yun asks, "can I leave hickeys on you?"
Yoonseo smiled, "uh, sure. Go ahead."
Yun kissed Yoonseo's neck as he pounds in repeatedly.
He leaves hickeys all over Yoonseo's body. His neck, collarbone, chest, waist.
Yoonseo too leaves a hickey on Yun's neck.
Yun pounds him as they kiss each other passionately.
The gentle breeze on their sweaty body makes them feel that their sex feel so good.
Under the moonlight, Yun cums. It gives off silver shine on Yoonseo's waist like a diamond jewellery.
Yun sees it, "You should get a waist chain uncle. It will look beautiful on you.
You will remember this moment."
Yoonseo nods, "alright. Will wear a silver waist chain for this moment."
They went on to have another round of sex as they kiss each other.
==To be continued.