You hear Emma and the mystery woman enter the room

You hear two sets of footsteps enter the room. The women whisper into each other's ears so you can't even get a clue as to who might be the mystery woman. You know she speaks English... that's about it.

Then you hear the sound of kissing - of two women kissing, one of them Emma. Your cock, which has been laying limp begins to grow. After a minute of kissing the you hear giggling. You feel so exposed - are they giggling because you now have a huge erection? Or are they still absorbed in just each other.

You hear what sounds like clothes dropping to the floor. You think they must be naked - both of them. You're beautiful girlfriend Emma is naked with another woman - kissing and touching her - and you don't get to watch! Your cock twitches in excitement and frustration.

You try to make sense of the sounds you are hearing. You hear some wet noises, but you feel like they could be anything. Are the woman fingering each other yet, sucking each other's nipples?

A hand grabs your cock. Is it Emma or her mystery woman? Then you feel a mouth, it feels amazing, but also, perhaps familiar. This is how Emma's blow job's feel, but that doesn't mean it's not another woman sucking your cock right now. Perhaps the mystery woman's mouth just feels similar to Emma's.