...is about 7 1/2 inches

Even if not the largest in the world, you are well above average, which gives you enough confidence to deal with most girls.
You do not sleep with everybody, but allowed himself to have fun at parties.
In the last few weeks, however, you hadnt found much relief, and so your thoughts slip away as you enter the hot water.

Slowly your hand wanders down your body until they reach your dick, which had slowly begun to make itself notable.
The back of your head leanded against the wall and your eyes closed, you slowly begin to masturbate.

Your hand on your penis, you begin to imagine girls you know, past experiences you shared with some of them, and things you would yet like to happen.

Going faster and faster you find yourself nearing your peak when you suddenly hear...