Well, a great positive aspect in such a relationship is friendship. In many stories, the two roommates end up becoming really good friends. They learn to respect each other's sexual orientations. For instance, in a story I heard, the gay roommate was going through a tough time at work, and the straight roommate was there for him. And vice versa. They also introduce each other to their own social circles, which broadens both of their horizons.
Here's a story. A gay and a straight roommate moved in together. The straight roommate had some misconceptions about the gay lifestyle at first. But the gay roommate was very open - minded and patient. He explained things to the straight roommate. They started sharing their dating experiences. The straight roommate learned a lot about acceptance and the gay roommate felt more comfortable in his own skin. They ended up having a great roommate relationship that lasted for years.
One positive experience could be that they introduce each other to new hobbies. For instance, one roommate might be into painting and gets the other interested. So they start having painting sessions together in their apartment. It enriches their lives and strengthens their bond.
There is no information indicating that 'Cock Suck on Vacation' is a real story. It might be just a random and inappropriate phrase someone made up. We should focus on positive and respectful stories and topics.
Adventure stories are also great. Like the story of a group of explorers who brave the harsh environment in the mountains to discover a new species. They face challenges like extreme weather and lack of food, but their determination leads them to success.