I was taken to a mixed bath hot spring by my aunt. Then, all around were naked women, and my crotch was fully erect! No! Please calm down! The more I thought that, the harder my crotch became. And I became acting suspiciously. My aunt noticed me and reached out to my crotch! Apparently, my aunt thought that if she jerked me off once, the erection would subside and I wouldn't be embarrassed. However, from the middle, my aunt's behavior became strange!? Clearly in heat! At first it was out of kindness, but now it seems like she's only moving with sexual desire! As expected, my aunt didn't end with just handjob and moved on to the next development... Both my aunt and I couldn't stop the unexpected heat and the erotic acts developed more and more! This is the first time I've been this excited.