A penis!?

Your eyes travel down Christy's body as she reveals herself to you. Her breasts, so often hidden from sight, are larger than average almost heaving with every breath. They are covered in a white and yellow striped shirt that was so thin you could almost see the dark hint of her nipples. Her heaven sent titties pulled the fabric of her shirt up, revealing the pale skin of her smooth, flat stomach. Your eyes widen as you suddenly see a bulge at the crotch of her jeans, hidden before by the front of her jacket, that struggled up under the blue cloth and culminated in a swollen head that peeked out from her waistline.

She has a penis! And the thing's rock hard and staring at you!

Christy blushes, looking away from you. She turns away from you as she tugs on her jacket, clearly regretting revealing her secret to you.