http://maximum.under.jp/original/bb/com/tan/12.html
This pic is called "Ordeal" or "Tribulation". Translation is as follows.
Shizuka: Can I stop now?
Gan: Wait Wait. Just one more, just one more picture.
Touko: Hey Shizuka.
*Can’t hold back*
*ahaha*
Touko: You’re always welcome to drink at my place/shop if you come dressed like that.
*dokun… dokun… (throb… throb…)*
Stop!! For love of God, don’t go any further!
*Is pretty conflicted/torn