One summer night at home.

He finally crosses the line with his girlfriend, a liberal arts major, whom he's been dating for six months.

After seeking each other many times, they fell asleep feeling each other's warmth.

The next morning, I wake up to a tingling sensation in my groin. I looked at her and she was not the one caressing my penis, but the one with the pouty face. It was the figure of a older sister who was always serious, the older sister who was a science group.