HUNTB-335-Uncensored-Leaked — "I want to learn to swim!" While having sex with my sister in her swimsuit... I ended up teaching my sister, who hates swimming lessons, how to swim. I couldn't help but get an erection from the swelling of her developing breasts...

I ended up teaching my younger sister how to swim because she hates swimming lessons. I couldn't help but get an erection from the swelling of her developing breasts and couldn't teach her properly! Noticing my erection and panicking, my sister said, "Teach me properly quickly, and what do I do to make that (erect penis) go down?" I couldn't hold back and asked her to let me have sex with her, but she recoiled, saying, "I don't think that's possible..." I despaired, thinking that our sibling relationship was over, but seeing how disappointed I was, my sister suggested, "Well, how about just rubbing it..."