http://www.dlsite.com/maniax/work/=/product_id/RJ139246.html

Plot: Feminized college freshman comes home exhausted. He writes on 2chan or something "I'm so tired. I wish I was a girl."

What happens next is obvious, and he puts on a show for them.

If you're going to comiket this year remember to check pixiv. It would be a shame if all the recently announced TSF went unscanned:
http://www.pixiv.net/search.php?word=tsf&order=date_d