Are You A Fool!? Why Did You Give Me Viagra!? Spread Your Legs and Correct Your Mistake!

As soon as my stepsister returned home, I asked her for a headache pill and without thinking twice, she took it out and gave it to me! After a while, I realized that something was wrong, the headache didn't go away, but suddenly an unrealistically strong boner appeared out of nowhere! Naturally, I realized that apparently it was Viagra! Fucked an insatiable sister in her pussy and mouth, because that's exactly what she wanted! And she said that she doesn't cum from sex!
My sister's orgasm was so strong that I experienced a storm of emotions!