Well, No!
I like lesbian content in the 2nd (or was it the 3rd?) place and the games benefit from them a lot. So adding it, 1st removes you from the game (ok actually I don't care), 2nd adds some spice to the vanilla.
And the relationsships the girls are having is their cup of tea, you can only decide if you want to play the game, not what they are doing....
I think you should be happy that the MC is not gay and get's anal penetration from other man, dildos or strapons. Comparing to this, I'm sure you can deal with girls kissing each other!