EMLB-036 - ぱんぱんに膨らんだ亀頭を喉に刺す 極悪小便飲みで窒息嗚咽する度，マジ絶頂 イキ続ける本物真正飲尿便器。8時間

It's basically an omnibus of golden shower scenes, but it's a good reference for deciding which individual works to buy. It's quite enjoyable on its own, so it's worth a watch!