Go to the side of the house and peek over the fence.

You quietly go around to the side of the house to see if you can see what's going on in the backyard. You find a spot where a tree is right next to the fence, and you hide behind the foliage so that you can look over the fence without being too obvious.

You see a large pool float in the middle of Steve's backyard pool where Steve is having a threesome with Tom and Susan, another couple who lives on your block. Susan is on all fours sucking Tom's cock while Steve fucks her from behind.