She finds it hilarious.

Lizzie's eyes are huge as she stares at my lower half, revealing the secret I have managed to keep my whole life as she see the 1 inch soft penis dangling on my otherwise fit and attractive body. "Oh my god bro! You look like a little kid down there!" Lizzie laughs and rolls on the floor after seeing my miniscule manhood, she stares at the abnormally large head of my cock, leaving little to no shaft to speak of, she almost thinks it looks like a little mushroom as I cover myself with my hands and yell at her to get out of my room.