I'm not so sure about the first scene, but from what I remember, I talked to him on the balcony, and after the fight in the colosseum, I apologized, then after Red got drunk, I chose the (tease him) option. As for the second scene choose the [Go wake up the others] option(see the image below) then click on the option [take a peek at his slit] then that's it(~￣³￣)~
Just make sure you have enough points on red to unlock the scenes(｡•̀ᴗ-)✧
