When my cock first met her wet opening, Katia's eyes shot open, and the kiss stopped without breaking. Her body pushed against mine, and I felt myself enter my sister in the worst way. I was stoic on the outside but wincing on the inside. Her breath caught as my cock hit the first barrier of resistance.

I suddenly feared for my sister in another way as I put together a lifetime of women gasping and complaining about how large my cock was. It was the only way I really knew how I compared to other men, but I never let it slow me down. April was right about that....