Oops I'm Dating Your Cousin - The Chance Encounters Series, #34

Trey, a college student, has a best friend, Jennifer. Jennifer always talks about her cousin Connor, another college student. Trey has never met Connor before, until one day, Jennifer invites Trey to a party at her house. When he arrives, he sees Connor for the first time and his heart skips a beat. As the night wears on, Trey finds himself drawn to Connor. But Trey worries about how Jennifer would react if she found out about his feelings for Connor.
However, fate has other plans, and one day, Jennifer has to attend an emergency and asks Trey to go with Connor to a football game. The more time Connor and Trey spend together after that the more feelings start to grow and the undeniable chemistry becomes harder to ignore. But Connor is Jennifer's cousin and both guys are straight.