My sister, who has always bullied me and is a big-breasted gal with a big attitude, finally pushed me over the edge. I mixed an erectile drug into her drink. Her skin turned pink and flushed, her breathing became rapid, and she reacted with a twitch at even the slightest touch on her body—she was completely in heat! Soon, she started looking sideways, sticking out her tongue, and drooling. Forgetting my daily frustrations, I ended up having sex with her. She moaned 'ahh ugh' with a vulgar expression, writhing in pleasure, making it impossible for me to stop ejaculating inside her.
