when i was depressed after being dumped by a girl, my step-sister said, "shall i be your girlfriend until my big brother gets one?" and asked me what i wanted to do! i, who was carried away, had my requests escalate!! i couldn't help but get an erection and when i asked her to do it because we're lovers... she said, "we're siblings, so that's no good, just endure it and rub against each other" and straddled me for raw sex!! because she was getting wet, i inserted it raw with a slippery thud!!