[DVRT-053] My big-breasted gal sister who's always bullied me is high on erection drugs! She's so disgustingly erotic that I can't help but stick my dick in her and she cums with a lewd ahegao face, so I can't stop cumming inside her!! R (Censored)

My sister, who has been bullying me for a long time, is a gal with big boobs and a big attitude. Finally, when my patience ran out, I mixed an erection drug into my drink and made my sister drink it. My sister's skin turned pink with excitement, her breathing became panting, and she reacted with a jerk when I touched her body lightly, going into full heat mode! Soon, she crossed her eyes, stuck out her tongue, and started drooling, so I forgot about my daily frustrations and fucked her. She moaned with a lewd "Aaaagh" face, and I couldn't stop cumming inside her.