My childhood friend, who I've been with since we were little, has a hobby of cross-dressing and always dresses like a man. She's a girl, but she's more like a male friend and I've never thought of her as a woman. While playing at home as usual, I spilled water on my childhood friend's shirt and it became see-through! I rubbed the towel to wipe off the wet clothes, but it seemed to hit her nipples and she let out a woman-like voice! When I saw my childhood friend with a woman's face, I got excited and my hand reached for my nipple. Then her big nipples started to get bigger and bigger, and she climaxed while leaking. I couldn't control my erection and inserted it into her pussy, which was moistened by playing with her nipples! I came inside my childhood friend, who was cross-dressed and sweating and cumming, over and over again!