Hehe I have owned this game for ps2 for a while. I just never go to this section of the forum. It is part of the Simple2000 series which are a series of simple but very fun games.
Simple2000 list here:
http://www.d3p.co.jp/s_20/s20_g.html
The title is ＴＨＥ 大美人 which translates as "The Large Beauty".
You can view pictures and a movie here:
http://www.d3p.co.jp/s_20/s20_050.html
BTW, the game is very fun like most Simple2000 games. It has been a while since I played it but I am pretty sure you use embarrassment to help take her down.