Left alone in the living room, Harry begins hearing moaning and pounding sounds coming from Tom's room.
Since Tom's apartment is not that big, it really isn't doing that great of a job to observe the sounds, plus the walls are thin as well.
Harry can hear everything that is happening inside Tom's bedroom, the girl's loud moans, their dirty talk, and the sound of Tom's dick digging deep into the woman's pussy. Everything is on full blast for Harry's ears to absorb.
And just like Tom predicted, Harry finds his dick getting hard as he tries to picture what's going on inside Tom's room.
He decides to ignore the sounds and tries to focus on the TV but the sound of sex is too distracting for him.
Unable to contain himself anymore, Harry gets up from the couch and walks up to Tom's bedroom. The sound of clapping and moaning gets more audible.
Harry then notices that the door is slightly ajar. Tom didn't lock it from the inside.