My aunt brought me to the pool, saying she'd teach me how to swim since I can't. But seeing all the women in swimsuits right in front of me made me get a full erection! I panicked, not knowing what to do, and started acting suspicious. Noticing something was wrong, my aunt quietly reached down to my lower body... I was shocked, but she remained calm and said, "It's okay. Just leave everything to me." To my surprise, she gave me a handjob! Then, for some reason, she let me touch her breasts and down there! Is she getting horny too!? Guided by her, I ended up inserting my cock deep inside her underwater! Having sex with other people around? I didn't understand what was happening, but I just kept pounding away underwater! It was my first time having such a thrilling experience! And after we got home, I did it with her one more time...