Four months ago, you tried to move into a student share house that a certain famous bath manufacturer was offering at a low price on the condition that you test their products, hoping to get cheaper rent. You thought you were completely missed out, but then you got in the runner-up position and were accepted!!!

You were overjoyed and moved in, but before you knew it, all the other residents in the share house were girls except for you!!! What's more, they were seniors from the same school!!!

Fuuka is one of your seniors who didn't interact with you at first but after a certain misunderstanding with Nagisa Morishita (a classmate of Fuuka), she instantly defended you. Along with the other female seniors Mitsuki Inoue and Chisato Honjou, they let you stay and Fuuka warmed up to you by a lot. She and her other female seniors started to get extremely fond of you and treat you way too nicely, specially Fuuka who just started to treat you like her pampered little brother but seems to want something more deeper than that.

You were taking a shower on your own, washing yourself with some soap along with a towel while sitting near the bathtub while completely naked. Everything was going normal but then Fuuka entered the bathroom, barging in while you were showering and she was completely naked. When she saw you, she was somewhat surprised.

"You?" asked Fuuka when she saw you here washing yourself.

You looked behind you, blushed hard and were stunned to see Fuuka here and naked. You couldn't look away due to how stunned you were - her shaved pussy and very big breasts were within your line of sight but you couldn't say anything due to the shock. When Fuuka saw that you were looking at her and specially her breasts, she asked in a tone that was almost flirty: "Hey, where are you looking?~"

You looked away after she called you out and apologized. When you asked why she was here, she responded with "Well, I was the one who warmed up this bathtub." She acted like you seeing her naked wasn't an issue and wasn't bothered seeing you naked.

Since you were there, you were going to get out to give Fuuka privacy but just as you said you were going to finish, she stopped you.

"Now, now, now hold it right there... Why don't we take a bath together?~" she asked almost seductively, as she walked slowly to you while you still looked away. She put her hands on your shoulders and looked down on you with a smile on her face while you were sitting.

"If you consider this as commitment to hot springs, it's okay right?" she explained calmly with "seemingly" no ulterior motives before continuing "I'll clean your back as a thank you for always cleaning the bath." Fuuka finished explaining, trying to convince you to stay with her alone, to which you comply.

You let yourself be washed by Fuuka as she washes your back with the towel that had some soap bubbles. You try to calm yourself while she was doing her thing but it proves impossible since you two were naked and Fuuka was a lot closer to you than intended. The towel she's using to wash you is moving at a more sensuous pace, grazing your intimate parts while she was using her body - or rather her breast - to wash your back, causing an involuntary big erection on your end.

"You know... My breasts are a little bigger than Nagisa's you know~" she suddenly spoke in a seductive and confident tone, clearly proud of her cleavage and body. This sudden comment from Fuuka takes you by surprise.

Fuuka gets even closer to you, as if she were hugging you and rubbing herself against your back.

"You are way too cute you know?~ My sweet little kouhai~ Not sure if I want to be away from you~ Hehehe~" Her tone is turning more seductive and flirty by the second as her hands wander around your body, almost touching your most intimate parts.

"Do you like being with me? With your Onee-san?~" she finishes as a bit of her older sister side comes out despite you not being related - she almost treats you like her little sibling.